3 years ago

Joe worked at 21 hours on his class project he worked it three times as long as Mary did how long did Mary work on her project

Mathematics

1 answer:

TiliK225 [7]3 years ago

8 0

21/3=7

mary worked 7 hours on her project.

hope it helps!

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Hello,

This question relates to compound interest and to solve it, we'll need to use the right formula.

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