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22-02-2017
Mathematics

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A test contains 40 questions Max's goal is to learn at least a 90 percent how many questions must he answer correctly to get at least a 90% show work using equivalent fractions

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22-02-2017

90% = 90/100

x/40=90/100 cross multiply

100x = 3600 divide by 100 on both sides
x=36

Max needs to get at least 36 questions correct to earn a 90&

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