Ratio and Rates

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

What is a rate?

Back

A rate is a specific kind of ratio that compares two quantities with different units, such as speed (miles per hour) or price per item.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity by the number of units to find the amount per one unit.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Ben saves $40 and his mother contributes $3 for every $1 he saves, how much will he have in total?

Back

Ben will have $160 in total ($40 saved + $120 contributed by his mother).

Tags

CCSS.7.EE.B.3

Front

How do you determine who is working at a faster rate when comparing two people?

Back

To determine who is working at a faster rate, calculate the rate for each person (e.g., lawns per hour) and compare the results.

Tags

CCSS.6.RP.A.3B

Front

What is the unit rate if 8 apples cost $5.20?

Back

The unit rate is $0.65 per apple.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you compare two prices to determine which is a better buy?

Back

To compare two prices, calculate the unit price for each item and choose the one with the lower unit price.

Tags

CCSS.6.RP.A.3B

Front

What is the formula for calculating a ratio?

Back

The formula for calculating a ratio is: Ratio = Quantity A : Quantity B.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the significance of unit rates in real-life applications?

Back

Unit rates help consumers make informed decisions by allowing them to compare prices, speeds, and other rates effectively.

Tags

CCSS.6.RP.A.3B

Front

If a 20 fl. oz. bottle of juice costs $1.80, what is the cost per ounce?

Back

The cost per ounce is $0.09 (calculated as $1.80 / 20 fl. oz.).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2