A. 18 is 20 percent of what number? B. 15 is 25 percent of what number? C. 12 is 30 percent of what number? D. 24 is 40 percent of what number? E. 39 is 60 percent of what number? F. 78 is 30 percent of what number? Question: Represent each as an equation with x as the unknown number, and solve.

Question

Mathematics

Albert Ewing

28 March, 05:48

A. 18 is 20 percent of what number? B. 15 is 25 percent of what number? C. 12 is 30 percent of what number? D. 24 is 40 percent of what number? E. 39 is 60 percent of what number? F. 78 is 30 percent of what number? Question: Represent each as an equation with x as the unknown number, and solve.

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Answers (2)

Know the Answer?

Cannon Mcclure · Answer 1

18=x*.20

15=x*.25

12=x*.30

24=x*.40

39=x*.60

78=x*.30

Step-by-step explanation:

To solve for x on each, divide the number on the left of the equal side by the number x is being multiplied by. For example, 18/.20=x

Leia Duke · Answer 2

a. 90

b. 60

c. 40

d. 60

e. 65

f. 260

Step-by-step explanation:

a. 18*100 = 1800/20=90

b. 15*100 = 1500/25 = 60

c. 12*100 = 1200/30 = 40

d. 24*100 = 2400/40 = 60

e. 39*100 = 3900/60=65

f. 78*100 = 7800/30 = 260