Running

Joanne ran 8 1/2 Kyleigh 1 2/3 and John 6 3/4 miles in one day. How many miles did the girls run in 3 days?

Correct answer:

x =  30.5 m

Step-by-step explanation:

$$\begin{gathered} J=8+1\mathrm{/}2={\displaystyle \frac{17}{2}}=8.5\text{ m } \\ K=1+2\mathrm{/}3={\displaystyle \frac{5}{3}}\doteq 1.6667\text{ m } \\ {J}_2=6+3\mathrm{/}4={\displaystyle \frac{27}{4}}=6.75\text{ m } \\ x=3\cdot (J+K)=3\cdot (8.5+1.6667)={\displaystyle \frac{61}{2}}={\displaystyle \frac{61}{2}}\text{ m}=30.5\text{ m} \end{gathered}$$

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