Class Assignment: 12162024 - Proportion Review

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

How do you find the total number of boys in a school given a ratio of boys to girls?

Back

To find the total number of boys, use the ratio to set up a proportion based on the total number of students.

Front

What does the constant of proportionality represent in a proportional relationship?

Back

The constant of proportionality is the constant factor that relates two proportional quantities, often represented by 'k' in the equation y = kx.

Front

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

Back

To find the unit rate, divide the total cost by the quantity to determine the cost per unit.

Front

What is the unit rate if you run 21.7 miles in 7 hours?

Back

The unit rate is 3.1 miles per hour.

Front

What is the formula to find the constant of proportionality?

Back

The constant of proportionality can be found using the formula k = y/x, where y is the dependent variable and x is the independent variable.

Front

If a recipe calls for 4 cups of flour for every 2 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 4:2, which simplifies to 2:1.

Front

How do you express a ratio as a fraction?

Back

A ratio can be expressed as a fraction by placing the first quantity over the second quantity.

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions state that two ratios are equal.

Front

If you spend $40 on 5 pounds of concrete, what is the cost per pound?

Back

The cost per pound is $8.