RP Standard 1 PRACTICE!

Front

What is the unit rate, or constant of proportionality?

Back

The unit rate is the ratio of two measurements in which the second measurement is 1. In this case, the unit rate is 3.

Front

A unit rate is a rate in which the unit in the denominator is:

Back

1.

Front

Choose the ratio that would be more useful: \( \frac{amount\ earned}{number\ of\ subscribers} \) or \( \frac{number\ of\ subscribers}{amount\ earned} \)?

Back

The more useful ratio is \( \frac{amount\ earned}{number\ of\ subscribers} \).

Front

If $279 is spent for 9 concert tickets, what is the cost per ticket?

Back

The cost per ticket is $31.

Front

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

Back

The unit rate is $8 per pound.

Front

Define 'constant of proportionality'.

Back

The constant of proportionality is the constant value of the ratio of two proportional quantities, often represented as 'k'.

Front

What does it mean if two quantities are proportional?

Back

Two quantities are proportional if they maintain a constant ratio or unit rate.

Front

How do you calculate the unit rate from a total cost and quantity?

Back

To calculate the unit rate, divide the total cost by the quantity. For example, if the total cost is $40 for 5 pounds, the unit rate is $40 ÷ 5 = $8 per pound.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.