What was his average speed from hour 4 to hour 7? 5 mph 7 mph 9.7 mph 21 mph
1 answer:
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Answer:
Step-by-step explanation:
2( N+ 17) = 3 (N +7)
2N+ 34= ·3N+ 21
N= 13
D= N+8 = 13+8 = 21
Fraction is
When Im using N is equal to numerator and D for denominator, in order to get the fraction we substitute and the results combine in the fraction like this