sharonjanethperez82
Answered

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Janeile has 6 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the race and walking back these
distance to cool down if she runs at a speed of 9 mph and walls back at a speed of 3 mph, how long should she plan to spend láng bade

Sagot :

jcherry99

Answer:

running 1.5 hours

Walking 4.5 hours

Step-by-step explanation:

Let the amount of time she spends on walking be x

d/3 + d/9 = 6            Multiply by 9

3d + d = 6*9

4d = 54                     Divide by 4

4d/4 = 54/4            

d = 13 2/4 = 13 1/2 = 13.5 miles

d/3 = 13.5/3 = 4.5 hours

d/9 = 13.5/9 = 1.5 hours

Total                6 hours

I hope this is the right interpretation.

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