A student wants to know the approximate distance between London and Beijing. Using a string, she finds that the distance on a gl
obe 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?
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.
Step-by-step explanation: a good proportion to use is 22 over 5000= 36 over the mystery number.( in this case, we will use D). then we cross multiply 22xd=5000x36. then we solve for D which is about 8181.81. therefore the rounded answer is 8182.
