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OpenStudy (anonymous):
Find the percent of change. Where necessary, round to the nearest percent. 31 in. to 7 in.
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OpenStudy (anonymous):
help please
OpenStudy (anonymous):
Use a ratio eauation, \[x/100=31/7\] x being the percentage over 100 and 31/7 being what you are trying to find. Use cross multiplication with gives you... \[7x=3100\] then solve for x by dividing 3100 by 7 which then gives you...?
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