Problema Solution
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. round to the nearest cent
$5000 is compounded quarterly at a rate of 10%. find the total amount in the compound interest account at the end of 20 years. (the compound interest factor is 7.20957)round to the nearest cent
Answer provided by our tutors
3 inches corresponds to 100 miles
7 1/2 = 7.5 inches apart on the map corresponds to x miles
we can set up the proportion
3 : 100 = 7.5 : x
3 / 100 = 7.5 / x
by solving we find
x = 250 miles
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