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Mathematics 31 Online
OpenStudy (anonymous):

On Monday, Lucy’s bank balance was –$164. On Tuesday, her bank balance was –$17. What was the change in Lucy’s bank balance from Monday to Tuesday? $

OpenStudy (anonymous):

This seems like basic math using negative integers. If Lucy's account had -$164, and then the next day she only had -$17, did she add or subtract money from her account?

OpenStudy (anonymous):

subtract @alanabrisa

OpenStudy (anonymous):

Well if we think about it, which amount is more? -164 or -17? Remember these are negative numbers so the closest number to 0 would be more

OpenStudy (timinthor):

The change is, Lucy is a bit less bankrupt than the day before haha

OpenStudy (anonymous):

^ hahaha

OpenStudy (anonymous):

Yah so she added money into her account. All you gotta do is figure out the difference. -164 - (-17) = ?

OpenStudy (anonymous):

haha

OpenStudy (timinthor):

Hint: Subtracting a negative is kinda like adding

OpenStudy (anonymous):

oh, ok. thank you

OpenStudy (anonymous):

thank for the help @Timinthor @alanabrisa

OpenStudy (timinthor):

No problem, medal would be appreciated!

OpenStudy (anonymous):

Sure thing :)

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