Proportions Flashcardz

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula to calculate miles per gallon (MPG)?

Back

MPG = Total miles driven / Total gallons of gas used.

Tags

CCSS.6.RP.A.3B

Front

If a recipe calls for a ratio of 2:3 for sugar to flour, how much sugar is needed for 6 cups of flour?

Back

4 cups of sugar (since 2/3 of 6 is 4).

Front

What does it mean to solve for x in an equation?

Back

To solve for x means to find the value of x that makes the equation true.

Front

What is the scale of a model?

Back

The scale of a model is the ratio of the model's size to the actual size of the object it represents.

Tags

CCSS.7.RP.A.2C

Front

How do you convert pints to cups?

Back

Multiply the number of pints by 2, since 1 pint equals 2 cups.

Tags

CCSS.4.MD.A.1

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first term is the numerator and the second term is the denominator.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the equivalent ratio of 4:5?

Back

Multiply or divide both terms by the same non-zero number (e.g., 8:10 or 2:2.5).

Tags

CCSS.6.RP.A.3A

Front

What is a proportion?

Back

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

Tags

CCSS.7.RP.A.2A