U6: Retake Rates. Ratios, and Percentages

Four pounds of apples cost $3.88. What is the price per pound?

A fitness instructor can do 75 pull-ups in 5 minutes. What is the rate?

Snow fell at a rate of 3/4 of an inch per hour. How much snow fell in a period of 6 hours?

A car wash uses 50 gallons of water every 40 seconds. How much water does it use per second?

• 1.25 gallons

• 1.5 gallons

• 1.75 gallons

• 2 gallons

Protein bars come in a 4-pack box or a 12-pack box. The 4-pack costs $7.68 and the 12-pack costs $22.32. Which box is the better value?

• 4-pack box

• 12-pack box

How many miles is Celine jogging in an hour?

• 3 miles/hour

• 2 miles/hour

• 4 miles/hour

• 5 miles/hour

How many more miles is Lucca running than Celine per hour?

• 5 more miles/hour

• 3 more miles/hour

• 2 more miles/hour

• 1 more mile/hour

What is the cost per pound of dog food based on the table?

• $1.40/lb

• $1.20/lb

• $1.60/lb

• $1.80/lb

Write an equation to represent the cost of another dog food that costs twice as much as shown in the table.

• C = 2.8p

• C = 1.4p

• C = 3.6p

• C = 2.0p

What percent of the squares in the model below are not shaded? (Hint: there are 6 shaded squares.)

• 60%

• 70%

• 80%

• 90%