Set Up Proportions 5Q

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 determine if two fractions are equivalent?

Back

Two fractions are equivalent if they represent the same value when simplified.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

Set up the proportion for Alice's earnings: Alice earned $20.40 in 3 hours. How much would she earn in 8 hours?

Back

Tags

CCSS.7.RP.A.2C

Front

Set up the proportion for Vito's watering: Vito uses 9 liters of water for 24 flower pots. How much water (w) for 40 pots?

Back

Tags

CCSS.7.RP.A.2C

Front

What is the formula to find the cost per person for an event?

Back

Cost per person = Total cost / Number of people.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Set up the proportion for Jericho's birthday party: It cost $20 for 4 people. What will it cost for 25 people?

Back

Tags

CCSS.7.RP.A.2C

Front

Set up the proportion for buying pens: 3 pens cost $0.69. What will it cost (c) for 180 pens?

Back

Tags

CCSS.7.RP.A.2C

Front

What is the cross-multiplication method in proportions?

Back

Front

How do you solve for a variable in a proportion?

Back

Cross-multiply and then isolate the variable on one side of the equation.

Tags

CCSS.7.RP.A.2C

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions state that two ratios are equal.

Tags

CCSS.6.RP.A.3A