Brenda is preparing food for a holiday party. For every guest, she prepared one plate of spaghetti. For every three guest she prepared one plate of cookies. Brenda prepared a total of 96 plates. How many guest did Brenda prepare food for?

1 Answer
Dec 17, 2016

There are 72 guests.

Explanation:

Lets say that x is the number of plates of spaghetti. So if one plate of spaghetti for every guest, there are x guests.

x=plates of spaghetti and number of guests

x/3=plates of cookies

x+x/3=96

(3x)/3+x/3=96

(4x)/3=96

4x=96xx3=288

4x=288

x=72