Question

Stable High School has a total of 112 boys and girls who play sports. If the number of girls, g is 16 more than twice the number of boys, b, how many girls play sports at this high school?
Which system of equations would help you solve this problem?

b + g = 112
b = 2g + 16

b + g = 112
g = 2b + 16

b − g = 112
b = 2g − 16

None of the systems above would solve this problem.

Answer 1

well boys and girls is 112, ->b+g=112

which rules the last one out,


we also know that g is twice as much as boys but also has 16 more boys than girls,

this implies...( you should know this one now!!)

Answer 2

2nd set will help

Answer 3

g=2b+16