Question

Mary and Bill both are saving money. Mary already has $30 and is able to save $5.50 every week. Bill already has $45 and is able to save $4.25 every week. When will Mary and Bill have the same amount of money?

Answer 1

Answer: 12 weeks

Explanation:

Let the week that both of them will have thesame amount of money be represented by x.

Since Mary already has $30 and is able to save $5.50 every week, this will be denoted as: 30 + 5.50x

Since Bill already has $45 and is able to save $4.25 every week, this will be debited by 45 + 4.25x. Then we'll equate both equations and this will be:

30 + 5.50x = 45 + 4.25x

5.50x - 4.25x = 45 - 30

1.25x = 15

x = 15/1.25

x = 12

They'll have thesame amount of money in 12 weeks.