Solve Percent Problems Using Proportions

Converting between fractions, decimals, and percents: Convert 0.75 to a fraction and a percent.

• 2/5, 50%

• 3/4, 75%

• 4/5, 80%

• 1/3, 25%

60 is 15% of what number?

• 90

• 40

• 9

• 400

22 is 44% of what number?

• 9.68

• 200

• 50

• 968

450 is 75% of what number?

• 600

• 500

• 337.5

• 650

95 is 95% of what number?

• 10

• 100

• 90.25

• 95

270 is 90% of what number?

• 243

• 100

• 350

• 300

120 is 30% of what number?

• 40

• 400

• 36

• 360

A student earned a grade of 80% on a math test that had 20 problems. How many problems on his test did the student answer correctly? (round to the nearest whole number).

• 14

• 15

• 16

• 17

There are 36 carpenters in a crew. On a certain day, 29 were present. What percent showed up for work? (round to the nearest tenth).

• 70.5%

• 64.2%

• 29.3%

• 80.6%

A metal bar weighs 8.15 ounces. 93% of the bar is silver. How many ounces of silver are in the bar? (round to the nearest tenth)

• 7.6

• 6.7

• 8.6

• 8.7