You can put this solution on YOUR website! raul scored 72% on a test and got 7 problems wrong. how many problems were on the test?
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let x=number of problems on the test
x-7=number of problems raul got right
(x-7)/x=72%
x-7=.72x
x-.72x=7
.28x=7
x=7/.28=25
how many problems were on the test? 25
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