Question

Which equation can be used to solve the problem?
10 is 50 percent of what number?

Answer 1

10 is 50% of what number?

ANSWER: 10 is 20% of 50

the answer is 20

10/20

Answer 2

20

Explanation:

you can use x as the unknown number. we know 50%=1/2. we also know that 1/2 of x is 10

equation: 1/2x=10

now multiply both sides by 2 to isolate x

x=10 x 2, x=20

the unknown number is 20