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2 years ago

12

Cindy saves $420 each month . her monthly salary is $ 2100. what is the ratio of the amount cindy saves to the amount she earns

each month ?
a) 1:5
b) 1:4
c) 2:3
d) 5:1

1 answer:

AfilCa [17]2 years ago

7 0

I took the test the correct answer is 1:5.

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Answer:

$D(x,y) = (-1.5,3.5)$

Step-by-step explanation:

Given

$E = (-3,2)$

$F = (3,8)$

$ED: DF = 1 : 3$

Required

Determine the coordinates of D

This is calculated as thus:

$D(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})$

Where:

$(x_1,y_1) = (-3,2)$

$(x_2,y_2) = (3,8)$

$m:n = 1:3$

$D(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})$

$D(x,y) = (\frac{1 * 3 + 3 *-3}{1+3},\frac{1 * 8 + 3 * 2}{1+3})$

$D(x,y) = (\frac{-6}{4},\frac{14}{4})$

$D(x,y) = (-1.5,3.5)$

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2 years ago

Justine received a bonus check from her work for $6000. She is going to deposit the money into her bank account that receives 5%

Digiron [165]

Assuming the inteest is annual, since it's simple that means we just have to analyze:

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$A=6000(1.05)^5$ , which when evaluated by our trusty calculator becomes:

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Eva8 [605]

Answer:

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Step-by-step explanation:

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If you add these up, you get the final answer:

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3 years ago

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Zolol [24]

We are asked to find 7 is what percent to 30.

We will use proportions to solve our given problem.

Let us assume that 7 is n% of 30. So we can set a proportion as:

$\frac{n}{100}=\frac{7}{30}$

Let us solve for n.

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