Solve for D





Thanks!!

Answer:

[tex]4[/tex]

Step-by-step explanation:

if 30days =6workers

20days =?

[tex] = \frac{20 \times 6}{30} \\ = 4[/tex]

Proportions can be inverse, direct, joint or combined.

They need 9 workers to complete the job in 20 days

Represent time with t, and the workers with w.

So, the proportional relationship is:

[tex]t\ \alpha\ \frac 1w[/tex]

Express as an equation

[tex]t\ =\ \frac kw[/tex]

Where k represents the proportionality constant

Make k the subject

[tex]k =wt[/tex]

6 workers complete the job in 30 days.

This means that: w =6, and t =30

So, we have:

[tex]k =6 \times 30[/tex]

[tex]k =180[/tex]

Substitute 180 for k in [tex]k =wt[/tex]

[tex]180 = wt[/tex]

In 20 days. we have:

[tex]180 = w \times 20[/tex]

Divide both sides by 20

[tex]9 = w[/tex]

Rewrite as:

[tex]w = 9[/tex]

Hence, they need 9 workers to complete the job in 20 days

Read more about proportions at:

https://brainly.com/question/14251450

Answer:

ok..... so what is the question?

Step-by-step explanation:

Answer: 25.7495 full: 25.75 rounded

Step-by-step explanation: Multiply 16*0.62, simple. From that you get 25.7495 Then, since there is a 9 after the four, you would round the 4 up to a 5.

Answer:

25.8

Step-by-step explanation:

Hope You have an nice day and God bless you! :)

Answer:

well the answer should be -1.8

but I'm guessing A

Answer:

[tex]-\frac{9}{10}[/tex] [tex]or[/tex] [tex]-0.9[/tex] [tex]or[/tex] [tex]C[/tex]

Step-by-step explanation:

[tex]\frac{2}{4}\div\frac{-5}{9}[/tex] = [tex]?[/tex]

[tex]\frac{2}{4}[/tex] = [tex]0.5[/tex]

[tex]\frac{-5}{9}[/tex] = [tex]-0.555555555556[/tex]

[tex]0.5\div-0.555555555556[/tex] = [tex]-0.899999999999[/tex] = [tex]-0.9[/tex]

[tex]So[/tex], [tex]the[/tex] [tex]answer[/tex] [tex]is[/tex] [tex]C[/tex].

[tex]This[/tex] [tex]is[/tex] [tex]because[/tex] [tex]A[/tex] [tex]is[/tex] [tex]\frac{-9}{10}[/tex] [tex]instead[/tex] [tex]of[/tex] [tex]-\frac{9}{10}[/tex].

Hope this helps! <3

Answer:

4

Step-by-step explanation:

40 x 4 = 160

100 + (15 x 4) = 160

15x4=60, btw

Answer:

Hope can help u~

Step-by-step explanation:

Answer:

shopping for a car

Step-by-step explanation:

lets say you want to buy a new car, you ask yourself, hmm, which one is the best for me. or which car has the best milage. those type of things

Answer:

Do I have to download it?

Step-by-step explanation:

Answer:

y = -2x - 3

Step-by-step explanation:

First, find slope (m) of the line using two points (0, -3) and (1, -5):

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-5 -(-3)}{1 - 0} = \frac{-2}{1} = -2 [/tex]

The line intercepts the y-axis at y = -3. Therefore the y-intercept (b) of the line = -3.

To write the equation that represents the line, substitute m = -2, and b = -3 into y = mx + b.

Thus:

y = -2x + (-3)

y = -2x - 3

Answer:

the first one is your answer

Step-by-step explanation:

Okay, I attached the image, if you have questions about graphing, go to use desmos

Answer:

Any line can be graphed using two points. Select two x x values, and plug them into the equation to find the corresponding y y values.

Step-by-step explanation:

Use the equation and given point to answer the questions below. The equation of line a is y=12x−1, and it passes through point (6,2).

Answer:

Is it compounded monthly, weekly, yearly, or continuously?

Step-by-step explanation:

then the formula would be P=A/(1+r/n)^tn where r is interest rate as a decimal, A is the initial value, t is the time and n is the number of times compounded in a unit 't'. Plugging in the values, we would get 1000/(1+.05/1)^8(1)=$1477.46

Answer:

33 is composite

Step-by-step explanation:Because its factors are 1, 3, 11, 33

Answer:

Step-by-step explanation:

The horizontal asymptote occurs at x = 0, Hence the equation that represents the asymptote of the graph is at x = 0

f(x) = 2^x +3.

0 = 2^x +3.

2^x +3. = 0

2^x = -3

log 2^ x = log(-3)

x log2 = log(-3)

x = log(-3)/log 2

Hence the required function is when x = 0

Answer:

1

Step-by-step explanation:

1 is increasing

2 is staying constant

3 is decreasing

4 is staying constant again

5 is also decreasing

Answer: 1/2

Step-by-step explanation:

y=1/2x-3

Answer:

WN=37.8

Step-by-step explanation:

WN=18%*210

WN=0.18*210

WN=37.8

Answer:

it is $2.50 multiplied by 4

Step-by-step explanation:

this is because for every 1 cinnamon roll it is $2.50 and if you multiply that by 4 you get $10, or how much it costs for 1 roll

Answer:

The Answer is to determine the amount of interest charged during a specific time frame

Step-by-step explanation:

Answer:

1660.75

Step-by-step explanation:

2555x.35=894.25

2555-894.25=1660.72

Answer:1 660.75 US$

Step-by-step explanation:

The answer to this question is 1660.75 US dollars. 2555 - 35% equals 1660.75 US dollars.

Answer:

B. 53

Step-by-step explanation:

7 to the power of 2 is simply 7 x 7. And 2 to the power of 2 is 2 x 2. Together you have 49 and 4 which makes 53 the simplified form of your equation.

Answer:

36 to 12

Step-by-step explanation:

subtract 12 from 48 an you get 36 girls

Lengths are 11cm , 13cm , 16cm , 12cm

Step-by-step explanation:

Perimeter = Sum of measure of all the sides of quadrilateral.

In the question , perimeter = 52 cm

So,

[tex]x + (x + 2) + 2(x - 3) + (x + 1) = 52[/tex]

[tex] = > x + x + 2 + 2x - 6 + x + 1 = 52[/tex]

[tex] = > 5x - 3 = 52[/tex]

[tex] = > 5x = 52 + 3 = 55[/tex]

[tex] = > x = \frac{55}{5} = 11[/tex]

Answer:

Step-by-step explanation:

Degree of freedom is expressed according to the formula as shown;

Degree of freedom = Sample size (Treatments) - number of parameters(Block)

Given

Number of treatments = 5

Number of blocks = 3

Degree of freedom = 5 - 3

Degree of freedom = 2

Hence the error will have 2 degrees of freedom in the randomized block design.

Answer:

-1-5x or C

Step-by-step explanation:

This becasue you need to mutipy the outside to the inside.Hope it helps