Ratios/Rates
Proportions
The (Unit) Price is Right!
That's soooo proportional!
Scale Factor
100

In a drawing, there are three circles, four stars, and three triangles. What is the ratio of stars to the total number of shapes? Simplify your answer.

What is 2:5?

100

What is the missing number in the proportion? 5/8 = n/48

What is n=30?

100
This is the unit price for 4 lbs of oranges costing $4.80.
What is $1.20 per pound?
100
If 5 apples cost $2, this is how much would 25 apples cost.
What is $10?
100

The scale factor for a map is 1 cm. = 200 km. On the map, Boston is 1.5 cm. from New York. How far is Boston from New York?

What is 300 km.?

200

Ari can walk 2 miles in 40 min. How long will it take him to walk 5 miles?

What is 100 min.?

200

Five shovels of sand are mixed with 4 shovels of gravel to make cement. How many shovels of gravel are needed for 45 shovels of sand?

What is 36?

200
This is the unit price for 2 lbs of grapes costing $1.99.
What is $1.00 per pound?
200
If 3 pencils cost $1, this is how much would 15 pencils cost.
What is $5?
200

Jeff drew a model of an airplane with a wing of 5 in. He used a scale of 1 inch: 5 feet. Find the actual length of the wing.

What is 25 ft.?

300

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

What is 1:2?

300

Thirty buses can carry 1500 people. How many people can be carried by 5 buses?

What is 250?

300
This is the unit price for 2 lbs of turkey costing $6.98.
What is $3.49 per pound?
300
If 12 bananas cost $20, this is how much would 3 bananas cost.
What is $5?
300

If you can buy 24 eggs for $8.64, what is the unit price?

What is $0.36 per egg?

400

The equation "t = 6.2h" gives the time in hours, "t", that a candle will burn if the candle has a height in inches of "h." How long will it take for a 4 inch candle to burn?

What is 24.8 hrs.?

400

Ivy's Fresh Eggs transports its eggs in crates. It takes 2 trucks to carry 80 crates. What is the number of crates 8 trucks can carry?

What is 320?

400
This is the unit price for 2.5 lbs of ketchup costing $5.00.
What is $2.00 per pound?
400
If 2 watermelon cost $2.50, this is how much would 5 watermelons cost.
What is $6.25?
400

Give the equivalent decimal form of 1/25.

What is 0.04?

500

The equation "d = 55t" gives the distance in miles, "d", that a car can travel in "t" hours. How long will it take to go 247.5 miles?

What is 4.5 hrs.?

500

What is the missing number in the proportion: 6/8 = n/20

What is 15?

500
This is the unit price for 3.5 lbs of mixed nuts costing $9.99.
What is $2.85 per pound?
500
If your average speed is 36mph, how far would you travel in 200 minutes?
What is 120 miles?
500

The expression 2n - 3 gives the number of tiles in row "n" of a pattern. How many tiles are in row 7?

What is 11?

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