Question

There are 36 students on the bus. There are 2 times as many girls than boys on the bus. On your paper, write a system of liner equations and solve for the number of girls and boys on bus. How many girls are on the bus. A-12 B-24 C-17 D-19

Answer 1

x = girls
y = boys
z = students in the bus

x + y = z
x + y = 36

total girls = 2 * total boys
x = 2 * y

2y + y = 36
3y = 36
y = 12
x = 2y = 24 (B)