dathanslck dathanslck

06-05-2021
Mathematics

contestada

Last night, Troy had homework in math and science. He spent 112 minutes altogether on his homework. He spent 3 times as long on science homework as on math homework.
How many minutes did Troy spend on his math homework?

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stmkotov1 stmkotov1

06-05-2021

x=28
112=x+(x*3)
112=x+3x
112=4x
4x=112
x=28

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