Ratios, Proportion, and Percent

Ratios

100

Write the ratio one to seven three different ways.

3/7, 3:7, 3 to 7

200

Give three equivalent ratios for 2:3.

4:6, 6:9, 8:12, etc....

300

Find the missing term 3 to 2 = __ to 8

12

400

rrwnnrynryyFind the missing term: 3:9 = 4:__

12

500

Of the ten members on a team, 2 are girls. What is the ratio of girls to boys?

2:8 or 1:4

Unit Rates

100

Write a ratio in fraction form for $64 in 16 hours.

$64/16 hours

200

Find the unit rate for 200 words in 4 min.

50 words/1 min.

300

Find the unit rate for 240 people per 2 sq.mi.

120 people/1 sq. mi.

400

rtyrmyymFind the unit rate for $19.20 for 5 tickets.

$3.84/1 ticket

500

Pops Cereal is sold in two boxes. 20 oz. sells for $3.28 and 14 oz. sells for $2.50. Which is the better buy?

$3.28 for 20 oz.

Percents as Ratios and Decimals

100

What is 22:100 as a percent?

22%

200

What is the decimal equivalent for 7.5%

0.075

300

thrmttWhat percent is 8/25?

32%

400

ryjryyrjyyryrWrite 12.5% as a decimal and ratio in simplest form.

0.125 and 1/8

500

Find the missing term: __ /25 = 0.24 = 24%

6

Percent of a Whole

100

2/5 = ___ %

we ewfegugeu gdgu dgu gu f v

200

3/12 = ___ %

25%

300

j5yj5446hydfffffffffffffffffki9/40 = __ %

22.5%

400

15/18 = __ %

83 1/3%

500

24/64 = ___ %

37.5%

Proportions

100

Juan has a ratio of 3 fish to 5 plants in his aquarium. He has 33 fish. How many plants does he have?

55 plants

200

Ten tangerines cost $1.60. How much do 8 tangerines cost?

$1.28

300

A map uses a scale of 2 in. for every 15 mi. If the map shows a distance of 32 in., what is the actual distance?

240 mi.

400

If you pay $42,000 for 35 acres of land, how much would you pay for 20 acres at the same price per acre?

$24,000

500

htrwntryrA plane travels 200 miles in 30 min. At this rate, how long, in hours and minutes, would it take for the plane to travel 900 miles?

2 hr 15 min.