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jekas [21]
4 years ago
12

Chang made $144 for 9 hours of work.

Mathematics
2 answers:
adell [148]4 years ago
7 0

Answer:

144 dollars=9 hours of work

112 dollars= x hours of work

144/112=9/x

144x=112(9)

Cross Multiply

x=7

He'll have to work 7 hours.

marshall27 [118]4 years ago
6 0

Answer:

Chang has to work 9 hours to make $112

Step-by-step explanation:

Amount made in an hour = Total amount/total hours worked

   =\frac{144}{9}\\

= $16

Duration he has work to make $112 = 112/16

= 9 hours

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