Question 878693
Ted walked for 120 mins and biked for 90 mins. He bikes four times faster than he walks. If the total distance travels is 32 miles, then what was his walking speed in miles per hour?
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let x=walking speed
4x=bike speed
distance=travel time*speed
120 min=2hrs
90 min=1.5 hr
...
120x+90*4x=32
2x+1.5*4x=32
8x=32
x=4
walking speed in miles per hour? 4