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 result:

x =  30.5 m

Solution:

J=8+1/2=172=8.5 m K=1+2/3=53≐1.6667 m J2=6+3/4=274=6.75 m  x=3⋅ (J+K)=3⋅ (8.5+1.6667)=612=30.5 mJ=8 + 1/2=\dfrac{ 17 }{ 2 }=8.5 \ \text{m} \ \\ K=1 + 2/3=\dfrac{ 5 }{ 3 } \doteq 1.6667 \ \text{m} \ \\ J_{2}=6 + 3/4=\dfrac{ 27 }{ 4 }=6.75 \ \text{m} \ \\ \ \\ x=3 \cdot \ (J+K)=3 \cdot \ (8.5+1.6667)=\dfrac{ 61 }{ 2 }=30.5 \ \text{m}

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