The charges for an international call made using the calling card for two phone companies are shown in the table. a. What is the length of a phone call that would cost the same no matter which company is used? b. Analyze Relationships When is it better to use the card from Company B?
Phone Company Charges
Company A 35¢ plus 3¢ per minute
Company B 45¢ plus 2¢ per minute

Answer:

[tex] - \frac{1}{2} ( {b}^{6} - 7 {b}^{2} - 3)[/tex]

Answer:

50multiply8=400grams

Answer:   506.8 (1dp)

Step-by-step explanation:

400 x 1.07^3.5 = 506.8  

i think this is the answer

Variation can be direct, inverse or jointly

Jordan's first error is that he incorrectly calculated the value of proportionality constant

From the question, we understand that f varies directly as the square root of g.

This variation is represented as:

[tex]\mathbf{ f\ \alpha\ \frac{1}{\sqrt{g}}}[/tex]

Express as a equation

[tex]\mathbf{ f\ \ =\ k\frac{1}{\sqrt{g}}}[/tex]

When f = 4, k = 4.

So, we have:

[tex]\mathbf{ 4\ \ =\ k\frac{1}{\sqrt{4}}}[/tex]

[tex]\mathbf{ 4\ \ =\ \frac{k}{2}}[/tex]

Multiply both sides by 2

[tex]\mathbf{ k = 8}[/tex]

When g = 100, we have:

[tex]\mathbf{ f\ \ =\ k\frac{1}{\sqrt{g}}}[/tex]

[tex]\mathbf{ f\ \ =\ 8 \times \frac{1}{\sqrt{100}}}[/tex]

[tex]\mathbf{ f\ \ =\ 8 \times \frac{1}{10}}[/tex]

[tex]\mathbf{ f\ \ = 0.8}[/tex]

This means that, Jordan incorrectly calculated the value of proportionality constant

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Answer:

8 mousetraps

Step-by-step explanation:

to find how many mousetraps per person, we need to divide 48 by 6, which gives us 8.

Answer:

I can't see the file

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

To find the x- intercept let f(x) = 0 , then

3log(x - 5) + 2 = 0 ( subtract 2 from both sides )

3log(x - 5) = - 2 ( divide both sides by 3 )

log(x - 5) = - [tex]\frac{2}{3}[/tex] , then

x - 5 = [tex]10^{-\frac{2}{3} }[/tex] ( add 5 to both sides )

x = [tex]10^{-\frac{2}{3} }[/tex] + 5 → C

Answer:

257% as a decimal is 2.57

0.003 as a percentage is 0.3%

Answer:

C

Step-by-step explanation:

hope it helps

would appreciate brainly

Answer:

C!

Step-by-step explanation:

We have that for the Question "I know how to apply the midpoint theorem, but I don't know where I should start my intervals." it can be said that

Where you start your intervals are at the (x,y) co-ordinate of the Reference points

From the question we are told

I know how to apply the midpoint theorem, but I don't know where I should start my intervals.

Generally the equation for the midpoint   is mathematically given as

[tex]m=\frac{x1+x2}{2},\frac{y1+y2}{2}[/tex]

Naturally the midpoint of two point is the point in between the reference points where distances from them are equal

Therefore

Midpoints co-ordinates simply considers the co-ordinate of the two main reference points.(x,y)

Hence

Where you start your intervals are at the (x,y) co-ordinate of the Reference points

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Answer:

n = {-1, 7}

Step-by-step explanation:

8n² - 56 = 48n

Subtract 48n from both sides

8n² - 48n - 56 = 0

Divide both sides by 8

n² - 6n - 7 = 0

Factor

alternately use the quadratic equation or complete the square

(n - 7)(n + 1) = 0

n = {-1, 7}

Answer:

so this is what i think im not sure but ot will be seven dived by two . i hope this works

Answer:

i can barely see this...can you make it bigger then i can figure out what o do so i can give you the answer......

Step-by-step explanation:

Answer:

1343

Step-by-step explanation:

Answer:

49/101 minutes

Step-by-step explanation:

Your first part is correct the estimate will be 30 minutes because 5 miles divided by 10 miles per hour = 1/2 hours which is 30 minutes.

To solve the second part you need to use the numbers given first so 4 9/10 divided by 10 1/10. I find it easier to do improper fractions in this type of problem so I will do 49/10 divided by 101/10. Now you have to divide. The steps for dividing fractions are

1)Keep the First Fraction the Same.

2)Flip the second fraction over

3)Change the sign to multiplication

After the steps you will get 49/10*10/101

The denominator of the first fraction and the numerator of the second share a factor so you can cross them out. The factor they share is 10 and both numbers are ten so you can cross them out to one. Now you have 49/1*1/101

Since 49 and 101 don't share any factors you can now multiply. You get 49/101.

[tex] \frac{31.20}{4.8} = \\ [/tex]

[tex]6.5[/tex]

Thus the cost of steaks per pound is $ 6.5

Easy peasy....

The cost per pound of steaks is $6.5.

One type of operation in mathematics is division. We divide the phrases or numbers into the same number of components during this operation.

Given, a 4.8 pound box of steaks costs $31.20.

To find the cost per pound of steak:

We take the division of total cost and total pounds in weight.

That means,

Cost per pound of steaks

= 31.20 / 4.8

= 6.5.

Therefore, the cost is $6.5 per pound of steaks.

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Answer:

b) 2x=9=>x=9/2=4.5

c)x/5=7=>x=5×7=35

d)x/2=6.5=>x=6.5×2=13

Answer:

107

Step-by-step explanation:

Because, 36+35=71

and 71+36=107

Answer:

107

Step-by-step explanation:

not that hard bro

Answer:

tenth- 49.1

Hundredth- 49.08

thousandsths- 49.076

ten-thousandths- 49.0758

Answer:

The egg which we eat is not a single Ovum (egg cell), but an ovum with a nutrient sack (the yolk) suspended in a nutrient protein broth (the egg white). In fairness, the egg yolk is connected to the ovum, so it could be construed as one cell, but the functioning cell part is microscopic.

Answer:

D. -4

Step-by-step explanation:

Answer:

12.5%

Step-by-step explanation:

To change a fraction to o percentage , multiply by 100% , so

[tex]\frac{16}{128}[/tex] × 100%

= 0.125 × 100%

= 12.5%

Answer:

Point-slope form: y - 3 = -6/5 (x + 5)

Slope-intercept form: y = -6/5x - 3

Answer:

The answer is irrational.

Step-by-step explanation:

Any whole number +/- an irrational number will be irrational as well. Since [tex]\sqrt{14}[/tex]is irrational (it can't be expressed as a ratio of 2 whole numbers) the answer will also be irrational because you are adding it to 19 (a whole number).

Statement:-

The sum of all the interior angles of a triangle is 180°. This is known ad the angle sum property of a triangle.

Proof :-

Consider a

Answer:

10

Step-by-step explanation:

A = 7, B = 2

7 = 2 * 3 + 1

7 mod 2 = 1

A = 8, B = 4

8 = 4 * 2 + 0

8 mod 4 = 0

A = 13, B = 5

13 = 5 * 2 + 3

13 mod 5 = 3

A = -16, B = 26

-16 = 26 * -1 + 10

-16 mod 26 = 10

Answer:

356.8 cm³

Step-by-step explanation:

Volume Sphere = [tex]\frac{4\pi r^3}{3}[/tex]

                          = [tex]\frac{4\pi *4.4^3}{3}[/tex]

                          = [tex]\frac{4\pi *85.184}{3}[/tex]

                          =  [tex]\frac{340.736\pi}{3}[/tex]

                          = 113.58π ≈ 356.8

-Chetan K

Answer:

y- intercept = 4

Step-by-step explanation:

The y- intercept is the point on the y- axis where the graph crosses the y- axis

In this case that is the point (0, 4 ) , then

y- intercept = 4

Answer:

Graph and solved

Step-by-step explanation: