Proportion and Conversions Review

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Tags

CCSS.7.RP.A.2A

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the two ratios and set the products equal to each other.

Tags

CCSS.7.RP.A.3

Front

What is the formula for converting kilometers to miles?

Back

To convert kilometers to miles, multiply the number of kilometers by 0.621371.

Tags

CCSS.2.MD.A.2

Front

If 5 ice cream cones are sold for every 3 brownies, what is the ratio of ice cream cones to brownies?

Back

The ratio of ice cream cones to brownies is 5:3.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the unit price of an item?

Back

To find the unit price, divide the total price by the number of items.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between cups of milk and cups of flour in a recipe?

Back

The relationship is a ratio that must be maintained to keep the recipe proportional.

Tags

CCSS.6.RP.A.3A

Front

If a recipe calls for 1.5 cups of milk for every 3 cups of flour, how much milk is needed for 5 cups of flour?

Back

2.5 cups of milk are needed to maintain the proportion.

Tags

CCSS.6.RP.A.3B

Front

What is the best way to compare prices of different quantities?

Back

Calculate the unit price for each option and compare them.

Tags

CCSS.6.RP.A.3B

Front

How many baseball cards can be bought if 36 cards cost $18?

Back

You can buy 2 baseball cards for $1, so with $9, you can buy 18 baseball cards.

Tags

CCSS.6.RP.A.3B

Front

What is the conversion factor from miles to kilometers?

Back

1 mile is approximately equal to 1.60934 kilometers.

Tags

CCSS.6.RP.A.3D