7th Grade Common Core Review

Front

Back

The solution is x = -24.

Front

Back

She drinks 4.5 ounces in an hour.

Front

In Mr. Johnson’s after-school club, the ratio of boys to girls is 4:12. If there are 6 boys in Ms. Greene’s club, how many girls are in her club?

Back

There are 18 girls in Ms. Greene’s club.

Front

Which pair of quantities is not proportional: (6,9), (8,12), (16,20), (18,27)?

Back

The pair (16,20) is not proportional.

Front

Brett earned $90 for working 12 hours. How much would he earn for working 20 hours?

Back

He would earn $150 for working 20 hours.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

Define proportional relationships.

Back

Proportional relationships are relationships where two quantities increase or decrease at the same rate.

Front

What is the formula for finding the unit rate?

Back

The unit rate is found by dividing the quantity by the number of units.

Front

Back

Isolate x by subtracting b from both sides and then dividing by a.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities.