Rachel decided to have bouncy balls as a party favor. She determines that her ratio of bouncy balls to guests is 9:3. Explain how to find the number of balls needed for 30 guests.

Mathematics · College · Wed Jan 13 2021

Answered on

Given the statement:

Rachel decided to have bouncy balls as a party favor. She determines that her ratio of bouncy balls to guests is 9:3. 

Explain how to find the number of balls needed for 30 guests

Solution:

In order to find the number of balls needed for 30 guest given the ratio of 9:3, we simply needed to divide 30 by 3, then multiply the quotient by 9.

= 30/3

= 10

= (10)(9)

= 90

Final answer:

90 bouncy balls are needed for the 30 guest.