Chris needs $858 to buy a computer. She has already saved $575. She gets $15 an hour for babysitting and will babysit 12 hours in the next month. She can save &8 a week form her allowance. How many weeks of allowance will it take Chris to save enough to buy the computer?

Question

Lilia Burns

Mathematics

10 February, 06:45

Chris needs $858 to buy a computer. She has already saved $575. She gets $15 an hour for babysitting and will babysit 12 hours in the next month. She can save &8 a week form her allowance. How many weeks of allowance will it take Chris to save enough to buy the computer?

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Answers (1)

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Adriana Baldwin · Answer 1

It will take Chris 13 weeks of allowance to save enough to buy the computer.

Step-by-step explanation:

Chris needs $858 to buy a computer.

She has already saved $575.

She gets $15 an hour for babysitting and will babysit 12 hours in the next month, then she will get for babysitting:

($15/hour) (12 hours) = $180

Then, Chris will need:

A=$858-$575-$180→A=$103

She can save &8 a week form her allowance, then she will need:

Number of weeks: n = $103 / ($8/week) → n=12.875 weeks

Rounding:

n=13 weeks