Question

Kristen has been earning $150 per week by babysitting. She has been working hard to save

20% of each week's earnings. If she continues to save the same amount each week, how many
weeks will it take her to save $180?

Answer 1

6 weeks

Explanation:

Multiply 150 by 0.2 (20% in decimal form) to get how much she saves every week.

150×0.2=30

She saves 30 every week, but you want to get to 180.

Divide 180 by 30, and you get 6

180÷30=6

That means it takes her six weeks to save $180.

Answer 2

6 weeks

Explanation:

If you divide $150 by .20%, you will get $30.

150/.2=30

That is how much she earns every week, but you want to $180 so you divide $180 by $30 to get 6 weeks.

180/30=6

Therefore, your answer is 6 weeks! :)