Question

Ashley has $100 and earns $25 each week by doing chores around the house. Vivienne has $280 and spends $20 each week buying Starbucks. How many weeks will it take for the two girls to have the same amount of money?

Answer 1

Let's use w to represent the number of weeks.

After w weeks, Ashley will have $100 + $25w.

After w weeks, Vivienne will have $280 - $20w.

We want to find the number of weeks it takes for the two girls to have the same amount of money.

So we can set the two expressions equal to each other and solve for w:

$100 + $25w = $280 - $20w

$45w = $180

w = 4

Therefore, it will take 4 weeks for Ashley and Vivienne to have the same amount of money.