SOLUTION: If 7 cakes serve 126 people , write an equation that can be used to determine the number of cakes needed to serve 400 people. How many whole cakes are needed to serve 400 people

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: If 7 cakes serve 126 people , write an equation that can be used to determine the number of cakes needed to serve 400 people. How many whole cakes are needed to serve 400 people       Log On


   

Question 1028561: If 7 cakes serve 126 people , write an equation that can be used to determine the number of cakes needed to serve 400 people. How many whole cakes are needed to serve 400 people
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
N%2F400=7%2F126
N=400%2A%287%2F126%29
N=2800%2F126
N=22%262%2F7
No one will sell 2%2F7 of a cake so move up to the next whole cake.
N=23