Answer:
Step-by-step explanation:
(a) 70 km/h · (1 mi/h)/(1.6 km/h) = 70/1.6 mi/h = 43.75 mi/h
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(b) In 3 hours, the car will travel ...
(43.75 mi/h)(3 h) = (43.75)(3) mi = 131.25 mi
Let the number = x
12 + x = 3x - 32
x = 3x - 44 Subtract 12 from both sides
-2x = -44 Subtract 3x from both sides
x = 22 Divide by -2
50
