write the percent equation then solve

Question

a. 0.65% of 900 is what number? _________________________________
b. What is 0.6% of 75? __________________________________________
c. 85% of what number is 102?

Answer 1

a. 0.65% of 900 is what number?

Percent equation: 0.65/100 = x/900

Cross multiply: 0.65*900 = 100x

Divide both sides by 100: x = (0.65*900)/100

Solve: x = 5.85

Therefore, 0.65% of 900 is 5.85.

b. What is 0.6% of 75?

Percent equation: 0.6/100 = x/75

Cross multiply: 0.6*75 = 100x

Divide both sides by 100: x = (0.6*75)/100

Solve: x = 0.45

Therefore, 0.6% of 75 is 0.45.

c. 85% of what number is 102?

Percent equation: 85/100 = 102/x

Cross multiply: 85x = 100*102

Divide both sides by 85: x = (100*102)/85

Solve: x = 120

Therefore, 85% of 120 is 102.