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Question Number 58974 by Tawa1 last updated on 02/May/19

Answered by MJS last updated on 03/May/19

$$\frac{3.86\mathrm{km}}{x\frac{\mathrm{km}}{\mathrm{hr}}}+\frac{180.2\mathrm{km}}{10x\frac{\mathrm{km}}{\mathrm{hr}}}+\frac{42.2\mathrm{km}}{5x\frac{\mathrm{km}}{\mathrm{hr}}}=16.2\mathrm{hr}$$$$\frac{3.86}{x}\mathrm{hr}+\frac{180.2}{10x}\mathrm{hr}+\frac{42.2}{5x}\mathrm{hr}=16.2\mathrm{hr}$$$$\frac{3.86}{x}+\frac{18.02}{x}+\frac{8.44}{x}=16.2$$$$3.86+18.02+8.44=16.2x$$$$x=\frac{30.32}{16.2}=\frac{758}{405}\approx 1.87$$$$\mathrm{he}\mathrm{swims}1.87\mathrm{km}/\mathrm{hr}$$$$\mathrm{he}\mathrm{bikes}18.72\mathrm{km}/\mathrm{hr}$$$$\mathrm{he}\mathrm{runs}9.36\mathrm{km}/\mathrm{hr}$$

Commented by Tawa1 last updated on 03/May/19

$$\mathrm{God}\mathrm{bless}\mathrm{you}\mathrm{sir}.\mathrm{i}\mathrm{appreciate}$$

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