10
Answer: DSet 1: Ratios Rates Proportions (Advanced)
Explanation
PROBLEM
On a map, 1 inch represents 4 miles. If two cities are 10 inches apart on the map, how many miles apart are they?
On a map, 1 inch represents 4 miles. If two cities are 10 inches apart on the map, how many miles apart are they?
A.
38
B.
80
C.
41
D.✓ Correct
40
Detailed Explanation
Choice D is the best answer. Distance = 10 inches times 4 miles/inch = 40 miles
Why others are wrong:
A: 38 is incorrect because it does not satisfy the equation.
B: 80 is incorrect because it does not satisfy the equation.
C: 41 is incorrect because it does not satisfy the equation.
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