Unit Rate through Proportional Equations LACEY

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity of one unit, such as miles per hour (mph) or dollars per item.

Front

How do you calculate speed using distance and time?

Back

Speed is calculated by dividing the distance traveled by the time taken. The formula is: Speed = Distance / Time.

Front

If a car travels 60 miles in 1.5 hours, what is the speed of the car in miles per hour?

Back

45 mph

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

Write the equation to represent the cost, y, for x oranges if 4 pounds cost $18.

Back

y = 4.5x

Front

What does the equation d = 0.5t represent in a proportional relationship?

Back

It represents that for every second (t) the robot travels, it covers 0.5 feet (d).

Front

What is the average score per run if Carter's average score is 82?

Back

The average score per run is represented by the equation c = 82r, where c is the total score and r is the number of runs.

Front

Which of the following equations is proportional: y = 6x, y = 3x + 2, y = 2x + 4, y = -2x -1?

Back

y = 6x is proportional because it can be expressed as a constant ratio.

Front

What is the formula for finding the unit price?

Back

Unit Price = Total Price / Number of Units.

Front

How can you determine if a relationship is proportional from a table of values?

Back

If the ratio of the y-values to the x-values is constant for all pairs, then the relationship is proportional.