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Mary decreaser time in the mile walk from 30 minutes to 24 minutes what is the percent decrease

Mary decreaser time in the mile walk from 30 minutes to 24 minutes what is the percent decrease
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Mary decreaser time in the mile walk from 30 minutes to 24 minutes what is the percent decrease

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User Idee
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There was a 20% decrease. To find the decrease, subtract the old number from the new number. (30-24=6) Then divide the decrease (6) by the original number and multiply the answer by 100. (6/30=0.2 0.2*100=20).
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User Jacob Honeyhume
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