Ratio Proportional Reasoning

Mr. Keys made $90 in 5 hours.  What is the unit rate?  

• $18 per hour

• $1 in 18 hours

• $90:5h

• 5 to 90

Alycia earned $20.40 in 3 hours. What is her unit rate in dollars per hour?

• $7 per hour

• $6 per hour

• $6.80 per hour

• $17.40 per hour

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

• $1.25 per pound

• $1 per pound

• $2 per pound

• $1.50 per pound

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Is the table proportional?

• Yes

• No

There are 10 chocolate chip muffins, 12 blueberry muffins, 2 pumpkin muffins, and 8 corn muffins on a tray. Write the ratio of pumpkin to chocolate chip muffins in simplest form.

• 10 to 12

• 2 to 8

• 2 to 10

• 1 to 5

On a map, if one centimeter represents 25 kilometers, how many kilometers does 7 centimeters represent?

• 175

• 185

• 200

• 220

Solve for x 

• x = 98/5

• x = 5/98

• x = 101/5

• 20
• 30
• 25
• 23

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

• 90 ft

• 7.5 ft 

• 4.5 ft

• 45 in