Question
. Bonita uses her debit card to withdraw $40 from her savings account every week for 7 weeks. What is the change in her account balance at the end of 7 weeks?
help solve
Answers
Ms. Sue
You have two numbers. Do you think you should
add?
subtract?
multiply?
divide?
What answer do you get?
add?
subtract?
multiply?
divide?
What answer do you get?
Joel
I subtracted 40 - 7 = 33 but I feel like there's more to it can you help I'm stuck
Ms. Sue
Joel -- obviously your answer is wrong. Does she have $33 LESS after 7 weeks of saving???
Joel
40x7 = 280 then divided 280 and 7 = 40 so it must be 280 in her account after the 7 weeks?
Ms. Sue
Now, you've got it! :-) -- almost!
Since we don't know how much was in her account to begin with, we don't know how much is in her account now. However, you're right that it has decreased (gone down) $280 in 7 weeks.
Since we don't know how much was in her account to begin with, we don't know how much is in her account now. However, you're right that it has decreased (gone down) $280 in 7 weeks.