Question

Andy has won 12 out of the last 24 tennis matches he has played. If he wants to improve his win record to 70%, which equation could he use to determine how many matches he would have to win in a row? A) 12 + x 24 + x = 0.70 B) 24 + x 12 + x = 0.70 C) 0.70 24 + x = 12 + x D) 0.70 12 + x = 24 + x

Answer 1

A

Explanation:

Currently, Andy has a winning record of 50%.

12 /24 = 0.50

To determine a winning record of 70%: add x matches to 12, x matches to 24, and set equal to 0.70.

12 + x /24 + x = 0.70

x = 16

Therefore, Andy would need to win 16 matches in a row.

Answer 2

Answer is A

12+x

____. =0.70

24+x