Margaret has $632 in her savings account at the beginning of the year.?

Question

Margaret has $632 in her savings account at the beginning of the year. She withdraws $24 every week for her expenses. If she wants to maintain at least $200 in her savings account, for how many weeks can Margaret withdraw the money? Enter your answer in the box below.

stanschim · Answer

First write the inequality:

Let w be the number of weeks.

632 - 24w >= 200

-24w >= -432

w <= 18.  Notice that the relational operator is reversed when dividing by a negative number.

? · Answer

I hope this is 2nd grade math and you don't want to be a pilot or a doctor:
 632-200=432
432/24=18 weeks

Margaret has $632 in her savings account at the beginning of the year.?

2 Answers