Question

The ratio of "d"s to "a"s in the school was 8 to 21. If there were 572 as in the school this term, how many ds were there?

1) 304
2) 1502
3) 1762
4) 218

Answer 1

To find the number of 'd's in the school, we can set up a proportion using the given ratio and the number of 'a's.

Step-by-step explanation:

To find the number of 'd's in the school, we need to use the given ratio and the number of 'a's. The ratio of 'd's to 'a's is 8 to 21, which means for every 8 'd's, there are 21 'a's. If there were 572 'a's in the school, we can set up a proportion:

(8 'd's) / (21 'a's) = x 'd's / 572 'a's

Using cross multiplication, we get:

x = (8/21) * 572 = 304

Therefore, there were 304 'd's in the school.