3rd 6 Weeks Flashcard 3.2

Front

What is the relationship between cups of flour and brownies made?

Back

The relationship is a ratio; 2 cups of flour make 30 brownies, which can be represented as a table showing the number of cups of flour used and the corresponding number of brownies made.

Front

How do you calculate the rate of speed?

Back

Rate of speed is calculated by dividing the distance traveled by the time taken. For example, if a train travels 260 miles in 5 hours, the speed is 260 miles ÷ 5 hours = 52 miles per hour.

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. For example, the ratio of red paint to blue paint in a mixture.

Front

How do you find the regular price from a discount?

Back

To find the regular price, divide the discount amount by the discount rate (as a decimal). For example, if a 30% discount is $6, the regular price is $6 ÷ 0.30 = $20.

Front

What does it mean to order items by distance?

Back

Ordering items by distance means arranging them from the greatest distance to the least distance. For example, if students ran different distances, you would list them from the one who ran the farthest to the one who ran the shortest.

Front

What is the formula for calculating distance?

Back

Distance = Speed × Time. This formula helps to determine how far an object has traveled based on its speed and the time it has been traveling.

Front

What is a proportional relationship?

Back

A proportional relationship is when two quantities maintain a constant ratio. For example, if 2 cups of flour always make 30 brownies, the relationship is proportional.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide by 100. For example, 30% becomes 0.30.

Front

What is the significance of a discount in shopping?

Back

A discount reduces the price of an item, making it more affordable. It is usually expressed as a percentage of the original price.

Front

What is the meaning of equivalent rates?

Back

Equivalent rates are different expressions of the same rate. For example, traveling 260 miles in 5 hours is equivalent to traveling at a rate of 52 miles per hour.