Percentages and Ratios

Which of the following questions will be answered when you use this ratio to solve for x?

• What is 12 percent of 80?

• 80 is 12 percent of what number?

• 12 is 80 percent of what number?

• 12 percent of 80 is what number?

Which of the following questions will be answered when you use this ratio to solve for x?

• What is 15 percent of 50?

• What is 50 percent of 100?

• 15 is 50 percent of what number?

• 50 percent of 15 is what number?

Which of the following questions will be answered when you use this ratio to solve for x?

• What is 28 percent of 40?

• What percent of 40 is 28?

• 40 is 28 percent of what number?

• 28 percent of 40 is what number?

Which of the following questions will be answered when you use this ratio to solve for x?

• What is 35 percent of 50?

• What percent of 35 is 50?

• What percent of 50 is 35?

• 50 percent of 35 is what number?

Write how to find the proportion of

2:8 :: 25:625

(Do not give space first right the means than the extremes.)

Mathematical Equivalence

ON

Which of the following questions will be answered when you use this ratio to solve for x?

• What is 4 percent of 25?

• What percent of 4 is 25?

• What percent of 25 is 4?

• 25 percent of 100 is what number?

Which decimal expression will equal 15% of 50?

• 15(0.5)

• 0.15(50)

• 1.5(50)

• 5.0(15)

Which decimal expression will equal 4% of 25?

• 25(0.04)

• 0.25(4)

• 0.25(0.4)

• 25(0.4)

Which decimal expression will equal 30% of 90?

• 90(0.3)

• 0.9(3)

• 30(90)

• 0.03(0.9)

Which decimal expression will equal 3% of 90?

• 90(0.3)

• 0.9(3)

• 30(90)

• 0.03(90)