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.

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.

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.

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).

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.

Front

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

Back

The unit rate is $0.65 per apple.

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.

Front

What is the formula for calculating a ratio?

Back

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

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.

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.).