Homework Help: math 8th grade

Posted by joe on Monday, October 5, 2009 at 5:43pm.

find 72% of 200 and i need to show work

math 8th grade - Christy, Monday, October 5, 2009 at 5:44pm
Create two fractions. 72/100 = ?/200 Then, cross multiply, which is multiplying 200 by 72, then dividing by 100. Then, you'll get your answer.
math 8th grade - ben, Tuesday, October 6, 2009 at 10:21am
72/100=x/200
**cross mulitply:
100x=72*200
100x=14400
x=14400/100
x=144

______
Or just multiply .72 by 200
.72*200=144
math 8th grade - Anonymous, Friday, October 16, 2009 at 3:44pm
144
math 8th grade - shaye, Monday, November 23, 2009 at 7:56pm
find a tenth of three-quarters of $800

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