Suzie scored 75% on her assignment. If she got 15 questions correct, how many total questions were on the assignment?

20 Questions Total

Step-by-step explanation:

15 divided by 20 = .75 = 75%

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set