Chase answers 3/4 of his math questions correctly. there were 40 questions on the test.

a. how many did he get right?

b. how many did he miss?

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

step-by-step explanation:

mean or average is 40.6