The height to length ratio of a brick wall is 3:20. The wall Is 40 feet long. How high is it

Question

Mathematics

Isabel Hinton

26 October, 02:36

The height to length ratio of a brick wall is 3:20. The wall Is 40 feet long. How high is it

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Answers (1)

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Davis Mcintyre · Answer 1

This is a ratio so we can simply set up a relation to find the unknown dimension ...

If 3:20=h:l we can say:

3/20=h/l and we are told l=40 so:

3/20=h/40 multiply both sides by 40

120/20=h do indicated division

h=6 ft

So the wall is 6 feet high.