Unit Rates
Proportions
Scaling Recipes
Proportion Word Problems
Unit 1 Review - Circles
100

Which of the rates are a unit rate?

a. $30 / 5 donuts

b. $75/ 1 hour

c. $9.51/2 gallons

b. $75/1 hour


100

Solve for x.

1 / 5 = 2/ x

x = 10

100

For 4 serving of waffles, you will need 2 eggs. How many eggs will you need if you want to make 8 servings?

4 eggs

100

The Seahawks won 4 out of 7 games. At this rate, how many games will they win after 14 games?

8

100

If a diameter of a circle is 15cm, what is the radius?

7.5cm

200

Find the unit rate: 50 miles / 5 hours

10 miles / 1 hour

200

Solve for x.

3/ 7 = x / 28

x = 12

200

To make sweet potato casserole for 6 people, you need 40 oz. of yams and 16 oz. of mini marshmallows.

How much mini marshmallows should you use if you have 10 oz of yams?

4 oz. of mini marshmallows

200

Gage can type 240 words in 3 minutes. How long will it take him to type 1,440 words?

18 minutes

200

What is the area of a circle with diameter 10in?

78.5 sq.in.

300

Find the unit rate: $14.77 / 7 pencils

$2.11/ 1 pencil

300

Solve for x.

x / 22 = 2/11

x = 4

300

To make sweet potato casserole for 6 people, you need 40 oz. of yams and 16 oz. of mini marshmallows.

How much yams do you need for 2 people?

13.333 oz. yams

300

Mr.Eiene walked 5 miles in 1.5 hours with Looker (his dog). At this rate, how long will it take for him and Looker to walk 20 miles?

6 hours

300

If a ferris wheel has a diameter of 60 feet, what is the total distance that it will cover in one full rotation?

188.4 feet.

400

Which store should you buy your sandwiches?

Wrenna's Wonderful Deli: $24.50 / 3 sandwiches 

Tegan's Tasty Shop: $42.50 / 5 sandwiches

Wrenna's Wonderful Deli because it costs $8.17/sandwich

(@ Tegan's Tasty Shop, it costs $8.50 per sandwich)

400

Solve for x. 

9 / x = 15 / 25

x = 15

400

To make sweet potato casserole for 6 people, you need 40 oz. of yams and 16 oz. of mini marshmallows.

How much yams do you need for 9 people?

60 oz. of yams

400

Kazuki walked 12 miles in 4 hours. How many feet per hour did he walk?

(5280 feet per mile)

15,840 feet per hour

400

What is the radius of a circle if the circumference is 25 cm?

3.98 cm

500

Tarun bought a pack of dozen socks for $15. How much would it cost for him to buy 13 socks?

$16.25

500

Solve for x.

15.5 / 2.12 = 3.1 / x

x = 0.424

500

To make sweet potato casserole for 6 people, you need 40 oz. of yams and 16 oz. of mini marshmallows.

How many full servings can you make if you have 75 oz. of mini marshmallows?

28 servings


500

Sawyer and Giray are making juice. 

Mix A has 2 cups of concentrate and 3 cups of water.

Mix B has 5 cups of concentrate and 9 cups of water.

Which juice will have more flavor?

Mix A 

(Because there's 0.666 cups of concentrate per water, but B only has 0.555 cups of concentrate per water)

500

What is the radius of a circle if it has an area of 113.04 sq. ft?

6 ft.