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Melinda paints 7/8 of a wall in 1 1/6 hours. What pat of a wall does Melinda paint in 1 MINUTE?

Sagot :

luana
[tex]1\ minue=\frac{1}{60}hour\\ 1\frac{1}{6}=\frac{7}{6}\\\\ \frac{7}{8}\ wall\ in\ \frac{7}{6}hours\\ x\ wall\ in\ \frac{1}{60}\\\\Proportion:\\ \frac{7}{8}\ - \frac{7}{6}\\ x-\ \frac{1}{60}\\\\cross\ multiplication\\\\ \frac{7}{8}*\frac{1}{60}=\frac{7}{6}x\\\\ \frac{7}{480}=\frac{7}{6}x\ \ \ | divide\ by\ \frac{7}{6}\\\\ \frac{7}{480}*\frac{6}{7}=x\\\\ x=\frac{6}{480}=\frac{1}{80}\\\\ In\ one\ minute\ Melinda\ will\ paint\ \frac{1}{80}\ of\ wall.[/tex]
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