Problema Solution
A schools choir is made up of 27 students. There are twice as many girls as there are boys in the choir. How many girls and how many boys are in the chior?
Answer provided by our tutors
let
g = the number of girl in the choir
b = the number of boys in the choir
A schools choir is made up of 27 students:
g + b = 27
There are twice as many girls as there are boys in the choir:
g = 2b
by solving the system of equations:
g + b = 27
g = 2b
we find:
g = 18 girls
b = 9 boys
click here to see the step by step solution of the system of equations:
there are 18 girls and 9 boys in the choir.