Q2 Math 7 Day 1 Bootcamp Review: Proportions & Unit Rates

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total quantity by the number of units.

Front

What is the constant of proportionality?

Back

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

Front

If Carl earns $11 per hour, how much does he earn in 5 hours?

Back

$55 (calculated as 11 * 5).

Front

Ronald bought 2 ½ pounds of candy for $14.33. What is the price per pound?

Back

$5.73 (calculated as 14.33 ÷ 2.5).

Front

Wendy bought 7 ¾ pounds of chicken for $20.99. What is the price per pound?

Back

$2.71 (calculated as 20.99 ÷ 7.75).

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Amount / Number of Units.

Front

How can you express a ratio?

Back

A ratio can be expressed as a fraction, with the first quantity as the numerator and the second as the denominator.

Front

What does it mean if two quantities are proportional?

Back

It means that as one quantity changes, the other quantity changes at a constant rate.

Front

If the constant of proportionality is 15, what is the value of y when x = 3?

Back

y = 45 (calculated as 15 * 3).