Question #cd891

2 Answers
Dec 7, 2017

x=80

Explanation:

40%=0.4=2/5
0.4=32/x
0.4x=32
x=32/0.4=32/(2/5)=(32*5)/2=160/2=80
x=80

Dec 7, 2017

x=80

Explanation:

Remember: 40% = 0.4!

.40 = 32/x

STEP ONE: Multiply each side by x so you can cancel out the x on the right side and keep the x on one side!

.40 = 32/x

.40x = 32

STEP TWO: Now, divide each side by .40 so you can get rid of the .40 in front of the x that is restricting it from being its own variable

.40x = 32

x=32/.40

x=80

Hope that helped!