Proportions Flashcardz

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 simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the scale in a blueprint?

Back

The scale in a blueprint is a ratio that represents the relationship between the measurements on the blueprint and the actual measurements.

Tags

CCSS.7.RP.A.2C

Front

How do you convert gallons to quarts?

Back

To convert gallons to quarts, multiply the number of gallons by 4, since 1 gallon = 4 quarts.

Tags

CCSS.4.MD.A.1

Front

What is the ratio of chocolate chip cookies to total boxes sold if 32 chocolate chip and 80 total boxes are sold?

Back

The ratio is 32:80, which simplifies to 2:5.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you solve for a variable in a proportion?

Back

To solve for a variable in a proportion, cross-multiply and then isolate the variable.

Tags

CCSS.6.EE.B.7

Front

What is the relationship between pints and cups?

Back

1 pint = 2 cups, so to convert pints to cups, multiply the number of pints by 2.

Tags

CCSS.4.MD.A.1

Front

If a blueprint scale is 1/8 in = 5 ft, how do you find the actual size?

Back

Multiply the length on the blueprint by the scale factor to find the actual size.

Tags

CCSS.7.RP.A.2C

Front

What is the simplest form of the ratio 20 quarts to 5 gallons?

Back

The simplest form is 4:1, since 20 quarts = 5 gallons.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the total number of boxes sold if you know the ratio of one type of cookie?

Back

If you know the ratio and the number of boxes of one type, you can set up a proportion to find the total.