Rates Ratio Proportions Review

Write an equation that represents the total cost (c) for apples that sell for $1.99 per pound (p).

• p= 1.99c

• p/c = 1.99

• 1.99/c = p

• c= 1.99p

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

Four pounds of bananas cost $6.  What is the cost per pound of bananas?

• $24 per pound

• $1.50 per pound

• $1 per pound

• $6 per pound

Is a percent a proportion?

• Yes

• No

• Sometimes

• Never

• I don't know

How do you calculate whether 3/4 is in proportion to 6/8?

• Divide four into 3

• Cross Multiply

• Multiply 6 x 8, and if it equals 4 it is in proportion

Which represents the relationship of oranges to fruit?

• 2:6

• 2:4

• 4:6

• 4:2

Kelly ate 3 apples. This represents 50% of the bag of apples. How many apples were originally in the bag?

• 3

• 4

• 5

• 6

The ratio of boys to girls in Mr. Baker's social studies class is 2 to 3. If there are 30 total students in class, how many more girls are in the class than boys.

• 6

• 8

• 10

• 12

The ratio of blue marbles to white marbles in Simon's bag is equal to 1 to 2. If there are 20 blue marbles, how many white marbles are there?

• 20

• 30

• 40

• 50