Three fifths of the members of a hiking club went on the last hiking trip. It 39 people went on the trip, how many are in the club?
1 Answer
Mar 4, 2018
45
Explanation:
We can set up this kind of problem a few ways. Here's one:
We're told that the 39 people who went on a trip is the same as
We can express the ratio of the people who went on the trip against the total membership this way:
And that ratio is equal to
We know 39 people went on the trip:
If we multiply the right side by
Therefore, the total membership is 45