Ratios
Unit Rates
Rates
100

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Write the ratio of shamrocks to hearts in 3 ways.

3 to 5

3 : 5

3/5

100
George read 126 pages of a book in 18 minutes. How many pages did he read in 1 minute?
7 pages per minute
100

5 shovels of sand are mixed with 4 shovels of gravel to make cement. What is the number of shovels of gravel needed for 45 shovels of sand?

36 shovels of gravel

200

Paul used 6 black tiles and 12 white tiles for a pattern. What is the ratio of black tiles to total tiles?

6:18 or 6/18 or 6 to 18

200

If a heart can beat 310 times in 5 minutes, how many times can it beat in 1 minute?

62 heartbeats/minute

200

Ari can walk 2 miles in 40 min. What is the amount of time it will take him to walk 4 miles?

80 minutes

300

A recipe calls for 2 eggs for every 8 cups of flour. How many eggs are needed with 40 cups of flour?

10 eggs

300
Christina biked 36 miles in 6 hours. If she biked at a constant speed, how many miles did she ride in one hour?
6 mi/hr
300
Apples sell 4 for $2.40. How much do 6 apples cost?
$3.60
400

There are 40 rabbits in a cage. The ratio of white rabbits to total rabbits is 3:10. How many white rabbits are in the cage?

12 white rabbits

400

The toys cost $69.95 for 5 models. What is the unit price for each model toy?

$13.99 per model toy

400
Larry can type 225 words in 3 minutes. How many words can he type in 10 minutes?
750 words
500

Logan's Pet Shop has a ratio of fish to gerbils of 3 to 4. 

Cam's Pet Shop has a ratio of fish to gerbils of 6 : 7. 

If both pet shops have 12 fish, which pet shop has more gerbils?

Logan's Pet Shop has more gerbils. (3 x 4 = 12 and 4 x 4 = 16 gerbils)

(Cam's Pet Shop: 6 x 2 = 12 and 7 x 2 = 14 gerbils)

500
Hillary earned $45 babysitting. If she babysat for 6 hours, what was her rate per hour?
$7.50 per hour
500
Rose spent $2.00 for 20 pieces of gum. Joe spent $1.50 for 10 pieces of gum. Who got the better deal and why?
Rose got the better deal. She got one piece for $0.10 and Joe spent $0.15 for one piece.
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