SOLUTION: Calvin spent 32% of the money he earned on a part time job for a shirt. How much did the shirt cost if he earned $40 on his job?

Question 50040: Calvin spent 32% of the money he earned on a part time job for a shirt. How much did the shirt cost if he earned $40 on his job?
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
Calvin spent 32% of the money he earned on a part time job for a shirt. How much did the shirt cost if he earned $40 on his job?
.
Part/Whole = %/100 [Formula for percent]
x/40=32/100 [Plug-in the values]
100x=(40)(32) [Cross-multiply]
100x=128 [Solve for x]
100x/100=128/100
x=$12.8
.
Check by plugging all of the values back into the formula for percent
12.8/40=32%/100
.32=.32 [Checks out}

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