Question 936810
Tyrell exercised this week both by walking and by biking. He walked at a rate of 4 mi/h and biked at a rate of 12 mi/h. The total distance he covered both walking and biking was 36 miles, and Tyrell spent one more hour walking than biking.
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That's mildly interesting, but you didn't ask a question.
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If you want to find the times biking & walking:
W = hours walking
B = hours biking
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4W + 12B = 36
W = B + 1
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If you want to solve it:
Sub for W in the 1st equation
4(B + 1) + 12B = 36
4B + 4 + 12B = 36
16B = 32
B = 2 hours biking
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W = B + 1
W = 3 hours walking
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Not a lot for a week, imo.