Carmen Co. can further process Product J to produce Product D. Product J is currently selling for $23.80 per pound and costs $15.00 per pound to produce. Product D would sell for $44.55 per pound and would require an additional cost of $11.75 per pound to produce. The differential cost of producing Product D is

Answers

Answer 1

Answer:

$20.75

Explanation:

Calculation to determine what The differential cost of producing Product D is

Using this formula

Differential cost =Revenue from sale of product D−Revenue from sale of product J

Let plug in the formula

Differential cost ​=$44.55−$23.80

Differential cost =$20.75

Therefore The differential cost of producing Product D is $20.75


Related Questions

The University Store, Incorporated is the major bookseller for four nearby colleges. An income statement for the first quarter of the year is presented below: University Store, Incorporated Income Statement For the Quarter Ended March 31 Sales $ 800,000 Cost of goods sold 560,000 Gross margin 240,000 Selling and administrative expenses: Selling $ 100,000 Administrative 110,000 210,000 Net operating income $ 30,000 On average, a book sells for $40.00. Variable selling expenses are $3.00 per book; the remaining selling expenses are fixed. The variable administrative expenses are 5% of sales; the remainder of the administrative expenses are fixed.The contribution margin for the University Store for the first quarter is: A) $660,000 B) $700,000 C) $180,000 D) $140,000

Answers

Answer:

The University Store

The contribution margin for the University Store for the first quarter is:

= D) $140,000

Explanation:

a) Data and Calculations:

University Store,

Incorporated Income Statement

For the Quarter Ended March 31

Sales $ 800,000

Cost of goods sold 560,000

Gross margin 240,000

Selling and administrative expenses:

Selling $ 100,000

Administrative 110,000 210,000

Net operating income $ 30,000

Selling price per book = $40.00

Variable selling expenses per book = $3.00

Variable administrative expenses = 5% of sales

Sales Revenue        $800,000

Cost of goods sold   560,000

Selling expense          60,000

Admin. expense         40,000

Total variable costs 660,000

Contribution margin 140,000

Perteet Corporation's relevant range of activity is 6,600 units to 13,000 units. When it produces and sells 9,800 units, its average costs per unit are as follows: Average Cost per Unit Direct materials $ 7.30 Direct labor $ 3.70 Variable manufacturing overhead $ 1.80 Fixed manufacturing overhead $ 3.10 Fixed selling expense $ 0.70 Fixed administrative expense $ 0.40 Sales commissions $ 0.50 Variable administrative expense $ 0.55 If 7,300 units are produced, the total amount of manufacturing overhead cost is closest to:

Answers

Answer:

Total overhead cost= $43,520

Explanation:

Giving the following information:

Variable manufacturing overhead $ 1.80

Fixed manufacturing overhead $ 3.10

First, we need to calculate the total fixed overhead:

Total fixed overhead= 3.1*9,800 = $30,380

Now, the total overhead cost for 7,300 units:

Total variable overhead= 7,300*1.8= 13,140

Total fixed overhead= 30,380

Total overhead cost= $43,520

Question 2: Global production company wants to collect data from the computer
buyers. AS A business research, explain which survey method of data collection would
be more appropriate. Justify your answer.

Answers

Answer:

ANswer to the following question is as follows;

Explanation:

Companies aim to acquire data from computer customers by surveying their business in the worldwide production market. This kind of data collecting delivers a more comprehensive survey than individual data gathering, is less costly, and saves time, and has a high response rate.

According to the present market circumstances, I recommended utilising a postal survey and in-person interviews study as a company researcher.

Equivalent Units of Materials Cost The Filling Department of Eve Cosmetics Company had 4,500 ounces in beginning work in process inventory (90% complete). During the period, 74,900 ounces were completed. The ending work in process inventory was 3,700 ounces (40% complete). What are the total equivalent units for direct materials if materials are added at the beginning of the process? fill in the blank 1 units

Answers

Answer: 74,100 units

Explanation:

If the materials are added at the beginning of the process then the opening work in process inventory would need to be deducted from the completed inventory for the period. Also there would be no need to multiply the units by their completion level because they are assumed to be at 100% completion because materials were added at the very beginning.

Total equivalent units for direct materials is:

= (Completed units - Opening inventory) + Closing work in process

= (74,900 - 4,500) + 3,700

= 74,100 units

If total assets decreased by $88,000 during a period of time and stockholders' equity increased by $71,000 during the same period, then the amount and direction (increase or decrease) of the period's change in total liabilities is:_______.a. $17,000 increase b. $159,000 increase c. $88,000 decrease d. $159,000 decrease

Answers

Answer:

The total liability will decrease by $159000

Explanation:

Below is the calculations:

Assets = Liabilities + Equity

Since the asset is the sum of liabilities and equity so the decrease in assets will be subtracted from the asset and an increase in the liability will be increased in the equity.

Assets = Liabilities + Equity

Assets - $88000 = (Liabilities-159000) + (Equity + 71000)

Assets - $88000 = (Liabilities + equity) - 88000

Thus the total liability will decrease by $159000

The burden of a tax is shared by producers and consumers. Under what conditions will consumers pay most of the​ tax? Under what conditions will producers pay most of​ it? A. It depends on who is legally obligated to pay the tax. Typically producers are required to pay the tax and therefore bear most of the burden. B. If demand is relatively more elastic than​ supply, producers will pay more of the tax. C. It depends on who is legally obligated to pay the tax. Typically consumers are required to pay the tax and therefore bear most of the burden. D. If demand is relatively less elastic than​ supply, producers will pay more of the tax.

Answers

Answer:

B

Explanation:

Price elasticity of demand measures the responsiveness of quantity demanded to changes in price of the good.

Price elasticity of demand = percentage change in quantity demanded / percentage change in price  

Price elasticity of demand = midpoint change in quantity demanded / midpoint change in price  

If the absolute value of price elasticity is greater than one, it means demand is elastic. Elastic demand means that quantity demanded is sensitive to price changes.  

Demand is inelastic if a small change in price has little or no effect on quantity demanded. The absolute value of elasticity would be less than one

Demand is unit elastic if a small change in price has an equal and proportionate effect on quantity demanded.  

Infinitely elastic demand is perfectly elastic demand. Demand falls to zero when price increases  

Perfectly inelastic demand is demand where there is no change in the quantity demanded regardless of changes in price.

If demand is more elastic than supply, if price is increased as a result of tax,  demand would fall more than supply. As a result, producers would bear more tax burden

Supply-side economists believe that a reduction in the tax rate a. always decrease government tax revenue. b. would decrease consumption. c. provides no incentive for people to work more. d. shifts the aggregate supply curve to the right.

Answers

Answer: D. shifts the aggregate supply curve to the right.

Explanation:

Supply side economics refers to the macroeconomic theory which states that the economic growth in an economy can be improved by the reduction in taxes and decrease in regulations.

Such Economists believe that this is vital as the consumers will benefit as there'll be an increase in the supply of goods from the manufacturers. Also, there'll be reduction in prices due to less taxes being paid. Also, there'll be an increase in employment.

Suppose a financial manager buys call options on 26,000 barrels of oil with an exercise price of $111 per barrel. She simultaneously sells a put option on 26,000 barrels of oil with the same exercise price of $111 per barrel. What are her payoffs per barrel if oil prices are $106, $107, $111, $115, and $116?

Answers

Answer:

Explanation:

Suppose a financial manager buys call options on 24,000 barrels of oil with an exercise price of $119 per barrel. She simultaneously sells a put option on 24,000 barrels of oil with the same exercise price of $119 per barrel. What are her payoffs per barrel if oil prices are $103, $108, $119, $130, and $135? (Leave no cells blank - be certain to enter "O" wherever required. A negative answer should be indicated by a minus sign.) 130 $ 135 Market price Payoffs per barrel 108 $ 119 103 $ $

The section of the demand curve from A to B represents the a. inelastic section of the demand curve. b. unit elastic section of the demand curve. c. perfectly elastic section of the demand curve. d. elastic section of the demand curve. g

Answers

Answer: d. elastic section of the demand curve.

Explanation:

When using a linear demand curve, it has been found that the top half of the curve represents the elastic section which is where the section A to B cover so this is the elastic section.

The mid point which is B here is the unitary elastic portion of the curve and the bottom half of point B to C is the inelastic section.

In the elastic section, increasing the price by a certain percentage would cause the quantity demanded to fall by a higher percentage than the percentage increase in price.

Over the past year, productivity grew 2%, capital grew 1%, and labor grew 1%. If the elasticities of output with respect to capital and labor are 0.2 and 0.8, respectively, how much did output grow

Answers

Answer:

The output growth rate is 3%.

Explanation:

Use the growth accounting equation as follow

ΔA% = ΔY% - αΔK% - βΔL%

Where

∆A = change in productivity = 2%

∆K = growth in capital =

∆L = growth in labor =

α = elasticity of capital = 0.2

β = elasticity of labor = 0.8

∆Y = change in output = ?

Placing values in the formula

2% = ΔY% - ( 0.2 x 1% ) – ( 0.8 x 1% )

2% = ΔY% - 1%

ΔY% = 2% + 1%

ΔY% = 3%

Hence, the output growth rate is 3%.

A company just paid a dividend of $1.75, and those dividends are expected to grow at a constant rate of 5.5% forever. The stock price of this company is $74.58, what is the stock's expected dividend yield?​

Answers

Answer:

2.48%

Explanation:

Dividend yield = Expected annual dividend / Price today

Dividend yield = $1.75 * 105.5% / $74.58

Dividend yield = $1.84625 / $74.58

Dividend yield = 0.0247553

Dividend yield = 2.48%

So, the stock's expected dividend yield is 2.48%.

Synovec Company is growing quickly. Dividends are expected to grow at a rate of 30 percent for the next three years, with the growth rate falling off to a constant 4 percent thereafter. If the required return is 10 percent, and the company just paid a dividend of $2.65, what is the current share price

Answers

Answer:

$87.03

Explanation:

Calculation to determine the current share price

First step is to calculate p1

p1= $2.65(1+.30)^3(1+.04) / (.10 - .04)

p1= $2.65(1.30)^3(1.04) / (.10 - .04)

p1=6.054932/.06

p1=100.92

Now let calculate the Current price

p0= [$2.65(1.30) / 1.10] +[$2.65(1.30)^2 / 1.10^2] + [$2.65(1.30)^3 / 1.10^3] + [$100.92/ 1.10^3]

p0=3.1318+4.4782/1.21+5.82205/1.331+$100.92/1.331+

p0=3.1318+3.700992+4.37419+75.82

p0=$87.03

Therefore the current share price is $87.03

The process of gathering and evaluating information to determine whose interests should be emphasized throughout the project is called

Answers

Answer:

whose interests shoud be emphasized throughout the project

Explanation:

Discuss the six HRM practices from which companies can choose for implementing their strategy. Illustrate by specific examples.

Answers

Answer:

Explanation:

Bạn ơi có câu trả lời ko cho mình xin với

Use the following selected information from Wheeler, LLC to determine the 2017 and 2016 common size percentages for cost of goods sold using Net sales as the base.
2017 2016
Net sales $522,200 $423,400
Cost of goods sold 219,400 135,440
Operating expenses 79,990 $77,090
Net earnings 40,420 28,670
a. 42.0% for 2017 and 32.0% for 2016.
b. 7.7% for 2017 and 6.8% for 2016.
c. 123.3% for 2017 and 100.0% for 2016.
d. 57.3% for 2017 and 50.2% for 2016.
e. 174.4% for 2017 and 199.2% for 2016.

Answers

Answer:

a. 42.0% for 2017 and 32.0% for 2016

Explanation:

Common size % for cost of goods sold = Cost of goods sold/Net sales

For 2017

= $219,400 / $522,200

= 0.4201456

= 42%

For 2016

= $135,440 / $423,400

= 0.31988663

= 31.99%

What expenses typically come first in the "Expenses" section of an income statement? a. Non-operating expenses b. Irregular expenses c. Selling, general and administrative expenses d. Tax expenses

Answers

Answer:

c. Selling, general and administrative expenses

Explanation:

Financial statements can be defined as a document used for the formal communication or disclosure of financial information and statements to present and potential users such as investors and creditors. These includes balance sheet, statement of retained earnings and income statement.

The expense recognition principle is an accounting principle which is typically used on accrual basis accounts and it states that expenses incurred by an individual or business entity should be recognized and matched in the same period with respect to the revenues they are related to.

Selling, general and administrative expenses typically come first in the "Expenses" section of an income statement.

Assume Sheryl Jenkins wants to accumulate $ 13,241.39 in two years. She currently has $ 10,621.36 to invest. What interest rate must she earn on her investment (that is, if she deposits $ 10,621.36 today) to have $ 13,241.39 exactly two years from today?

Answers

Answer: 11.65%

Explanation:

The $13,241.39 is a future value amount as it is what is to be accumulated in 2 years.

Future value formula therefore applies:

Future value = Current value * ( 1 + interest rate) ^ no. of years

13,241.39 = 10,621.36 * ( 1 + i) ²

(1 + i)² = 13,241.39 / 10,621.36

(1 + i)² = 1.24667556697

1 + i = √1.24667556697

i = 1.116546267 - 1

i = 11.65%

You own a stock portfolio invested 30 percent in Stock Q, 25 percent in Stock R, 25 percent in Stock S, and 20 percent in Stock T. The betas for these four stocks are .80, 1.18, 1.19, and 1.36, respectively. What is the portfolio beta

Answers

Answer:

The Portfolio beta is 1.1045

Explanation:

The computation of the portfolio beta is given below:

Stock          Beta       Investment (Weight)       Weighted Beta

Stock Q      0.8         0.3                                   0.2400

Stock R       1.18       0.25                                  0.2950

Stock S       1.19       0.25                                  0.2975

Stock T        1.36      0.2                                    0.2720

Portfolio beta                                                  1.1045

Your home insurance provides for replacement value for personal property losses. A microwave is stolen. It cost $258 two years ago and has an expected life of six years. A comparable microwave costs $366 today. What amount will the insurance company pay

Answers

Answer: $366

Explanation:

Replacement Cost Coverage refers to the valuation methods for the establishment of the value of an insured property which is used in knowing the amount that an insurer will

have to pay in case there is a loss and in such case, the insurance company will have to pay the costs at the present price to replace the damaged product.

Since the comparable microwave costs $366 today, therefore the insurance company will pay $366.

22.On January 1, 2021, Amazon purchased a $64,000 office equipment and expected its useful economic life of 5 years. At the end of year 5th, the company expected to sell the equipment for $4,000. It is now December 31, 2021. Which of the following entries are needed to be made before preparing financial statements?
a. Debit Office equipment $64,000; Credit Cash $64,000
b. Debit Depreciation expense - Office equipment $64,000; Credit Cash $64,000
c. Debit Depreciation expense - Office equipment $12,000; Credit Accumulated depreciation – Office equipment $12,000
d. Debit Accumulated depreciation – Office equipment $12,000; Credit Depreciation expense - Office equipment $12,000

Answers

Answer:

C.

Explanation:

64000-4000 (salvage value)=60000

60000/5=12000 (annual depreciation)

depreciation expense.        12000

   Accumulated depreciation.     12000

An organization implements an information system to optimize its supply chain. The system helps the organization decrease wastage. Hence, the system provides a competitive advantage to the organization. Here, the information system helped the organization achieve competitive advantage by

Answers

Answer:

Reducing cost

Explanation:

Competitive advantage is defined as the edge a firm has over others that results in greater profits.

It can be as a result of technology, price, cost reduction, or quality.

In the given scenario where an organization implements an information system to optimize its supply chain by decreasing wastage, it is reducing its cost as a way of gaining competitive advantage over other companies.

When the interest rate in an economy decreases, it is likely the result of either a/an ________ or a/an ________.

Answers

Answer:

expansionary practice; open market purchase of securities by the Fed.

Explanation:

Fiscal policy in economics refers to the use of government expenditures (spending) and revenues (taxation) in order to influence macroeconomic conditions such as Aggregate Demand (AD), inflation, and employment within a country. Fiscal policy is in relation to the Keynesian macroeconomic theory by John Maynard Keynes.

A fiscal policy affects combined demand through changes in government policies, spending and taxation which eventually impacts employment and standard of living plus consumer spending and investment.

Basically, an expansionary fiscal policy will cause the total increase in aggregate demand to be greater than the initial increase in aggregate demand due to the multiplier process.

Hence, when the interest rate in an economy decreases, it is likely the result of either an expansionary practice or an open market purchase of securities by the Federal Reserve System (Fed).

According to the Keynesian theory, government spending or expenditures should be increased and taxes should be lowered when faced with a recession, in order to create employment and boost the buying power of consumers

The over-the-counter securities market Multiple Choice is similar to organized stock exchanges. does not include illiquid bank stocks. does not trade corporate bonds. does not have a central location. accounts for the least total dollar value of all of the secondary markets.

Answers

Answer: is similar to organized stock exchanges.

Explanation:

Over-the-counter simply means the trading of securities fir the companies that are not listed on a formal exchange. Such securities are traded through a dealer network rather than on the centralized exchange.

Some securities that trade over the counter include corporate stocks,US government securities, and municipal securities. The over-the-counter securities market is similar to organized stock exchanges.

If the exchange rate for Canadian and U.S. dollars is 0.92777 to 1, this implies that 13 Canadian dollars will buy ____ worth of U.S. dollars. (Select the nearest answer.)

Answers

Answer:

U.S. dollars = 14.012 U.S. dollars

Explanation:

Below is the exchange rate:

0.92777 Canadian dollars = 1 U.S dollars

Thus to find the amount of U.S. dollars bought from the 13 Canadian dollars, just divide the 13 Canadian dollars from 0.92777. Therefore the resulting answer will be the U.S. dollars.

U.S. dollars = 13 / 0.92777

U.S. dollars = 14.012 U.S. dollars

You expect to receive $5,400 two years from now, $6,300 three years from now, and $10,900 six years from now. What is the future value of these cash flows seven years from now if the interest rate is 7.4 percent, compounded annually

Answers

Answer:

Total FV= $27,805.2

Explanation:

Giving the following information:

You expect to receive $5,400 two years from now, $6,300 three years from now, and $10,900 six years from now.

Interest rate= 7.4%

To calculate the Future Value, we need to use the following formula:

FV= Cf*(1 + i)^n

Cf1= 5,400*(1.074^5)= 7,716.41

Cf2= 6,300*(1.074^4)= 8,382.19

Cf3= 10,900*1.074= 11,706.6

Total FV= $27,805.2

ou own a portfolio that is 30 percent invested in Stock X, 20 percent in Stock Y, and 50 percent in Stock Z. The expected returns on these three stocks are 11 percent, 17 percent, and 13 percent, respectively. What is the expected return on the portfolio

Answers

Answer:

The expected return on the portfolio is:

= 13.2%

Explanation:

a) Data and Calculations:

Portfolio

Stock      Percentage  Expected    Weighted

                 Holding       Returns       Returns

Stock X        30%            11%                3.3%

Stock Y        20%            17%               3.4%

Stock Z        50%            13%               6.5%

Total          100%                                13.2%

b) The expected return on the portfolio is the addition of the weighted returns from each investment.  The weighted returns are obtained by multiplying the percentage holding of each stock with its expected returns.

Shareholders may prefer the compensation package that includes stock options because the options give the CEO the incentive to maximize the price of the company's stock, thus benefiting the shareholders. A fixed salary, regardless of stock price performance, can lead to a CEO who is willing to do the minimum necessary to maintain the job, but who is not motivated to work extra hard for shareholders.

a. True
b. False

Answers

Answer: True

Explanation:

There exists a problem known as the Agency Problem between managers and the shareholders of a company. The manager is the agent and the shareholders are the owners. Sometimes, it has been shown that the agent might act in their best interests as opposed to be best interests of the owners of the business.

To solve this, the manager should be made an owner as well and one way to do so is to give them stock options. This way, they will be motivated to work hard for the owners because they will benefit as well.

Most executive information systems include a _____, which integrates information from multiple sources and presents it in a unified, understandable format, often as charts and graphs.
a. digital dashboard
b. decision support system database
c. model base
d. decision support system engine

Answers

Answer:

a. digital dashboard.

Explanation:

Management involves the control, planning and organization of the affairs of a business firm.

Basically, the management of an organization is saddled with the responsibility of planning, organizing, controlling and staffing within the organization.

An Executive information system is also referred to as an Executive support system and it can be defined as a management support system that enhances and supports all of the senior executive information and decision-making process.

Hence, most executive information systems (EISs) include a digital dashboard, which is typically used for integrating information obtained from multiple sources and then presents it in a unified, understandable format, often as charts and graphs.

Paper Company receives a $4,598, three-month, 3% promissory note from Dame Company in settlement of an open accounts receivable. What entry will Paper Company make upon receiving the note

Answers

Answer and Explanation:

The journal entry that should be recorded at the time of receiving the note is given below:

Notes Receivable - Dame Company $3,164  

      To Accounts Receivable - Dame Company  $3,164

(Being the receiving of the note is recorded)

Here the note receivable is debited as it increased the assets and credited the account receivable as it decreased the assets

The accountant for Sysco Company is preparing the company's statement of cash flows for the fiscal year just ended. The following information is available: Retained earnings balance at the beginning of the year $ 819,000 Net income for the year 230,000 Cash dividends declared for the year 42,000 Retained earnings balance at the end of the year 1,007,000 Cash dividends payable at the beginning of the year 10,000 Cash dividends payable at the end of the year 11,000 What is the amount of cash dividends paid that should be reported in the financing section of the statement of cash flows

Answers

Answer: $41000

Explanation:

The amount of cash dividends paid that should be reported in the financing section of the statement of cash flows will be calculated thus:

Beginning dividend = $10000

Add: Dividend declared = $42000

Less: Ending dividend payable = $11000

Cash dividend paid = $41000

Other Questions
If my savings of $x grows 10 percent each year, how much will i have in 2 years? 5 x 1/4 how can you use addition to show that your answer is correct? Refer to the outline below.I. CookingA. Non-food items1. Paper plates2. Pots and pans3. Cooking utensilsB. Food items1. WaterII. ShelterA. TentB. Sleeping bagsC. LanternIII. MiscellaneousA. Trash bagsB. MapsC. Bug sprayWhat is the main topic of this outline?CookingShelterCamping tripPaper plates Please help! I will give brainly please help me analysis this 2x-3=5(x+2)(3x-15)=0 Cht x c nhiu trong thc phm no? Read the following statement:Energy cannot be created or destroyed.Does the statement describe a scientific law? (3 points) aNo, because it universally applies to all objects bNo, because it is not true in all circumstances cYes, because it universally applies to all objects dYes, because it is not true in all circumstances CompuGlobal is an American firm producing computers. CompuGlobal imports computer components from Taiwan and assembles them domestically. Suppose that in the United States, a computer sells for $800 and that 60% of the computers value comes from the value of the imported components. The United States imposes a 50% tariff on computers and a 10% tariff on the computers components. Assume that costs of producing components are the same in the United States and Taiwan and that transit costs are nonexistent. Based on the information provided, the effective rate of protection that CompuGlobal receives from the tariff is This passage presents of positive view of American Idol. what is the main way it achieves this? What point of view does Emily Bront use in this excerpt from the novel Wuthering Heights?In all England, I do not believe that I could have fixed on a situation so completely removed from the stir of society. A perfect misanthropists heaven: and Mr. Heathcliff and I are such a suitable pair to divide the desolation between us. A capital fellow! He little imagined how my heart warmed towards him when I beheld his black eyes withdraw so suspiciously under their brows, as I rode up, and when his fingers sheltered themselves, with a jealous resolution, still further in his waistcoat, as I announced my name.A. first-person point of viewB. second-person point of viewC. third-person limited point of viewD. third-person omniscient point of view In Example 9.2 (p. 214), if you instead carried the suitcase by the handle so that the suitcase was hanging directly at your side, how much work would you do on the suitcase as you carried it forward at a constant walking speed This year, Herb Partnership generated $740,000 ordinary business income. Herb has two equal partners: Savory LLC and Sweet Corp., an S corporation. Savory LLC has three members: Mr. Parsley, an individual who owns a 40 percent interest; Mrs. Rosemary, an individual who owns a 35 percent interest; and Sage Inc., a C Corporation which owns a 25 percent interest. Sweet Corp. has 100 shares of outstanding stock, all of which are owned by Ms. Mint, an individual.Required: Identify the taxpayers who must pay tax on the partnership income, and determine how much income must be reported by each. The lodge staff asked the guest to store hisin the safe to prevent them from getting stolen.AvaluablesBvalue CvaluablyDvaluableness What is the value of 1/4 {38-14} + 3^3 divided by 9 Answer is D , others say its 64 but I got it wrong Assume you are selling pizzas at $ 8 per pizza. Your fixed costs (rent, salaries, and utilities) are $4,438/month. The food costs and other variable costs are 40 percent of the selling price. What is your break-even point in units if you need to make 25% target return on the sales revenue? (enter only the value) What does a pharmacist do? Why is velocity proportial to pressure? blood flows through many small tubes if the dialyser. what is the significance of this