# Chapter 2 - Solving Equations - Chapter Review - 2-10 Change Expressed as a Percent - Page 156: 63

39%

#### Work Step by Step

Convert all the number in to minute unit 10 hours 11 minutes = 10(60)+11=611 minutes 14 hours 7 minutes= 14(60)+7=847 minutes percent increase formula : $\frac{Difference}{Original}$$\times100 \frac{847-611}{611}$$\times$100=$\frac{236}{611}$$\times$100=0.39$\times$100=39%

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