Question

3

At a stream cleanup, the ratio of
adult volunteers to child volunteers
is 7:4. If 20 children volunteer, how
many adults are there?

Answer 1

35

Explanation:

a=adult c=children

7a:4c

?a:20c

20 is 5 times more than 4 which I found by doing 20/4

So now we multiply 7 by 5 to get 35

35a:20c

There are 35 adults