Proportions

Front

What is a proportion?

Back

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

Front

How do you find the constant of proportionality?

Back

The constant of proportionality is found by dividing one quantity by the other in a proportional relationship.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity of one.

Front

If 2 apples cost $20, what is the cost of 1 apple?

Back

The cost of 1 apple is $10.

Front

How do you determine if two ratios form a proportion?

Back

Two ratios form a proportion if their cross products are equal.

Front

What is the formula for direct variation?

Back

The formula for direct variation is y = kx, where k is the constant of proportionality.

Front

If a car travels 280 miles in 7 hours, what is its speed in miles per hour?

Back

The speed is 40 miles per hour.

Front

How do you calculate the total cost of multiple items given a unit price?

Back

Multiply the unit price by the number of items.

Front

What is the relationship between distance, rate, and time?

Back

The relationship is given by the formula: Distance = Rate × Time.

Front

If 624 calories are consumed in 3 servings, how many calories are in 5 servings?

Back

The total calories in 5 servings is 1040 calories.