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On a map, 3 inches corresponds to 100 miles. Find the actual distance between two cities that are 7 1/2 inches apart on the map.

On a map, 3 inches corresponds to 100 miles. Find the actual distance between two cities that are 7 1/2 inches apart on the map.
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3 votes
On a map, 3 inches corresponds to 100 miles. Find the actual distance between two cities that are 7 1/2 inches apart on the map.

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User Hutingung
by
8.0k points

1 Answer

1 vote
Check by using law of ratios and proportions:
3 is to 100 = 7.5 is to x
Rule: The product of the means equals the product of the extremes.
3•x = 7.5•(100)
3x = 750
x= 750 : 3
x = 250
answered
User Jibiel
by
8.1k points
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