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?
Answer

27

54

62

81

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?
Answer
		
27
		
54
		
62
		
81

anonymous · Answer

b + g = 89
b = 2g + 8
=> b = 2(89-b) + 8
=> 3b = 2*89 + 8
=> 3b = 186
=> b = 186/3 = 62