A student wants to know the approximate distance between London and Beijing. Using a string, she finds that the distance on a globe between London and Beijing is about 36 centimeters and between London and New York is about 22 centimeters. The actual distance between London and New York is about 5000 kilometers. If she lets d represent the approximate distance in kilometers between London and Beijing, what is d rounded to the nearest whole number?

Question

Mathematics

Roderick Barajas

20 January, 14:02

A student wants to know the approximate distance between London and Beijing. Using a string, she finds that the distance on a globe between London and Beijing is about 36 centimeters and between London and New York is about 22 centimeters. The actual distance between London and New York is about 5000 kilometers. If she lets d represent the approximate distance in kilometers between London and Beijing, what is d rounded to the nearest whole number?

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Answers (1)

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Case Torres · Answer 1

8182 kilometers

Step-by-step explanation:

A correct proportion to use is 22 over 5,000 = 36 over d

Cross multiply to get 22d = 5,000 x 36. Then, solve d. d = 8181.81 ... so the approximate distance rounded to the nearest whole number from London to Beijing is 8182 kilometers.

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