6th Grade IM Unit 2 Review

Front

What is the unit rate when 3 apples cost $9.99?

Back

The unit rate is $3.33 per apple.

Front

If a mixture contains 3 teaspoons of red paint and 7 teaspoons of yellow paint, what is the ratio of red to yellow paint?

Back

The ratio of red to yellow paint is 3:7.

Front

How do you find the equivalent ratio of a mixture?

Back

To find an equivalent ratio, multiply or divide both terms of the ratio by the same non-zero number.

Front

If you have 35 teaspoons of yellow paint, how much red paint is needed to maintain the same ratio of 3:7?

Back

You would need 15 teaspoons of red paint.

Front

What is the total number of parts in the ratio 3:7?

Back

The total number of parts is 3 + 7 = 10.

Front

In the mixture of grape soda, what is the total amount of liquid when mixing 5 cups of grape juice with 7 cups of soda water?

Back

The total amount of liquid is 5 + 7 = 12 cups.

Front

What is the equivalent ratio of Andre's mixture of 6 cups of grape juice and 9 cups of soda water?

Back

The equivalent ratio is 30:45.

Front

How do you simplify the ratio 30:45?

Back

To simplify, divide both numbers by their greatest common divisor, which is 15. The simplified ratio is 2:3.

Front

If a bag contains 100 marbles with a ratio of 9 blue marbles for every green marble, how do you find the number of green marbles?

Back

Let the number of green marbles be x. Then, 9x + x = 100. Solving gives x = 10 green marbles.

Front

What is the total number of blue marbles if there are 10 green marbles in the bag?

Back

If there are 10 green marbles, then there are 90 blue marbles (9 times the number of green marbles).