M7 CFA #1 '24

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If the ratio of boys to girls is 3 to 2 and there are 12 boys, how many girls are there?

Back

8 girls.

Front

What is unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity of one.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the better buy between two products?

Back

Calculate the price per unit for each product and compare them.

Tags

CCSS.6.RP.A.3B

Front

If a 12-pack of Pepsi costs $3.50, what is the price per can?

Back

$0.29 per can.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If John caught 50 fish and 14 were trout, what is the proportion of trout?

Back

The proportion of trout is 14/50 or 28%.

Front

How do you estimate a population based on a sample?

Back

Use the ratio of the sample to the total sample size to estimate the total population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

If the estimated population of a lake is 7,500 and 14 out of 50 fish caught were trout, how many trout are expected in the lake?

Back

2,100 trout.

Tags

CCSS.6.RP.A.3B

Front

What is the formula to calculate how many items are needed based on a ratio?

Back

Divide the total number of people by the number of people one item can serve.

Front

If one pizza feeds 3 people, how many pizzas are needed for 36 people?

Back

12 pizzas.

Tags

CCSS.7.RP.A.2C