Rates Unit Rates Percent Problems Ratios Customary Conversions

Rates & Unit Rates

Percent Problems

Ratios

Customary Conversions

Metric Conversions

Rates & Unit Rates Percent Problems Metric Conversion s ? ? ? $100 $200 $200 $100 $200 Ratios Customary Conversions $300 $300 $400 $400 $500 $500

How do you change a rate into a unit rate?

Make the denominator equal 1 by dividing the numerator and denominator by the denominator?

I traveled 300 miles with 6 gallons of gas (in my Prius). Change that to a unit rate

50 miles per gallon

I paid $5. 99 for 64 oz of ice-cream. Find the cost per ounce.

$0. 09 per oz

Change each to a unit rate to determine which is the better deal: A: $2. 05 for 16 lb B $3. 92 for 28 lb

choice A ($0. 13/lb)?

Jerry threw 80 strikeouts in 10 games. Tom had 64 in 8 games. Who has the better strikeouts per game average and by how much?

They had the same number of strikeouts

Change 25% to a fraction in simplest form.

1/4

25% of what number is 100?

400

70% of what number is 245

350

20% of what number is 7

35

95% of what number is 19?

20

There are 12 boys and 22 girls. What is the ratio of boys to girls in simplest form?

6: 11

The ratio of pigs to cows is 25: 15. What is the ratio in simplest form?

5: 3

The ratio of blue socks to green socks is 2: 3, give 2 equivalent ratios.

Possible answers 4: 6, 6: 9, 8: 12, 20: 30

True or False- 5: 12 is equivalent to 1: 3

False

Find the missing number in these equivalent ratios. 2: 3 = 22: ?

33

28 yd = ___ft

84 ft

6000 lb = ___T

3 T

24 c = ___ pt

12 pt

32 lb = ___ oz

512 oz

2 gal = ___ qt

8 qt

35 kg = ___ g

35000 g

128, 000 m. L = ___ k. L

0. 128 k. L

5. 4 m = ___ cm

540 cm

450 m = ___ km

0. 45 km

0. 563 g = ___ mg

563 mg

Is 9: 12 equivalent to 45: 60?

yes

Describe the ratios formed by the figure below in 4 different ways?

3 shaded : 8 total : 3 shaded 5 unshaded : 8 total : 5 unshaded : 3 shaded 3 shaded : 5 unshaded

What are three ways of writing a ratio? (You can use any numbers to make your ratios)

2 : 5 2 to 5 and 2 5

Write as a ratio in simplest form: 70 homes out of 125 have a computer with internet access.

14 to 25

72 qt = ___ pt

144 pt