02-12-2016
Mathematics

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Ted took a test with 40 question.He received a score of 90% how much did he answer correctly

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02-12-2016

x/40=90%
percent means parts out of 100
90%=90/100=9/10

x/40=9/10
times both sides by 40
x=4*9
x=36
he answered 36 correctly

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