3
Answer: DSet 3: Ratios Rates Proportions (Intermediate)
Explanation
PROBLEM
A car travels at 48 miles per hour for 3 hours. How many miles does it travel?
A car travels at 48 miles per hour for 3 hours. How many miles does it travel?
A.
72
B.
143
C.
288
D.✓ Correct
144
Detailed Explanation
Choice D is the best answer. Distance = Rate times Time = 48 times 3 = 144 miles
Why others are wrong:
A: 72 is incorrect because it does not satisfy the equation.
B: 143 is incorrect because it does not satisfy the equation.
C: 288 is incorrect because it does not satisfy the equation.