Apiece of rope is 94.2 inches long will enclose a child’s wading pool. what is the diameter of the pool? a. 15 inches b. 47.1 inches c. 30 inches d. 31.4 inches

If chase won the next 18 matches then he will be able to get a 75% winning record.

Step-by-step explanation:

Let the no. of games chase has to win be 'y'.

He has won 18 matches out of 30.

If he won y matches more he will have a 75% winning record.

To find the percentage we should calculate,

  % = (no. Of matches won) x 100/ (total no. of matches)

As the no. of matches won increases, the total no. of matches also increases.

So y should be added to the matches won and also to the total no. of matches played.

[(18+y) /(30+y) ] x 100 = 75%

[(18+y) (100) ] = 75(30+y)

1800 + 100y = 2250 + 75y

100y - 75y = 2250 - 1800

25y = 450

y = 18

So if chase won next 18 matches then he will be able to get a 75%