Use a system of equations to solve the following problem: Douglas High School has a total of 89 boys and girls who play sports. If the number of boys is 8 more than twice the number of girls, how many boys play sports at this high school?

54

27

81

62

Question

Use a system of equations to solve the following problem: Douglas High School has a total of 89 boys and girls who play sports. If the number of boys is 8 more than twice the number of girls, how many boys play sports at this high school?

 54

 27

 81

 62

jdoe0001 · Answer

well, let's see
there are 89 boys and girls total
b + g = 89

boys are 8 more than twice girls
twice girls is => 2g
8 more than THAT is => 2g + 8
so 
2g + 8 = b

the system of equations looks like 

b + g = 89
2g + 8 = b

so, solve by "substitution" :)

anonymous · Answer

please help me