2-9 Percents

Write a proportion and solve:
Eight is what percent of 64?

• 12.5%

• 8%

• 800%

Write a proportion and solve:
What percent of 50 is 80?

• 160%

• 62.5%

Write a proportion and solve:
Six is what percent of 5?

• 120%

• 83.3%

• 132%

• 64%

Write a proportion and solve:
What percent of 125 is 2?

• 62.5%

• 1.6%

• 2.5%

• 73.4%

Write an equation for:
Fifty is 15% of what number?

• 50 = 15x

• 50 = .15x

• 50(15) = x

Write an equation to represent:
Fourty is what percent of 90?

• 40 = 90x

• (90)(40) = x

• 40x = 90

I=prt
Find p if I = 45, r = 6%, t = 0.5

• 15

• 1500

• 150

• 1.35