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erastova [34]
3 years ago
8

If there is direct variation and y = 27 when x = 4, find y when x =12.

Mathematics
1 answer:
Aleksandr [31]3 years ago
4 0

Answer:

B

Step-by-step explanation:

Given y and x vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 27 when x = 4 , then

27 = 4k ( divide both sides by 4 )

\frac{27}{4} = 6.75 = k

y = 6.75x ← equation of variation

When x = 12 , then

y = 6.75 × 12 = 81

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gulaghasi [49]

Answer:

This repayment will ultimately reduce her monthly bank account balance

Step-by-step explanation:

This repayment will ultimately reduce her monthly bank account balance. That is because the steady monthly income that Emma would normally receive to her bank account will be taken out of her account and sent to her sister's account. This will continue to occur for 13 months until Emma pays back the $312 that she borrowed from her sister. Once the 13 months are over and her debt is paid, her monthly bank balance will return to normal and begin increasing as her income payments get deposited.

7 0
3 years ago
A flower shop acquired 80 new customers last year. Costs in the marketing and sales areas were the following:
icang [17]

Using proportions, it is found that the Customer Acquisition Cost was of $1,215.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount.

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More can be learned about proportions at brainly.com/question/24372153

5 0
2 years ago
41/17 rounded to the nearest hendreth
Andrews [41]

Answer:

2.47

Step-by-step explanation:

convert it to a decimal = 2.47058823....

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3 0
3 years ago
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8 0
4 years ago
(4x - 3) + (3x+9)<br> Solve this!
dusya [7]

The answer for this problem would be 7x+6

Let's solve this problem step-by-step.

4x−3+3x+9

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3 years ago
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