Comparing and Scaling Unit Review

Front

Does this graph represent a proportional relationship?

Back

No, because it doesn't pass through the origin.

Front

Mr. Anderson sees the winter coat he wants is 30% off. The original price is $90.00. What is the sale price of the coat?

Back

$63

Front

Samantha runs 2 miles in 20 minutes. About how far does she run in 55 minutes?

Back

5.5 miles

Front

Mr Palacios delivers newspapers. He can deliver 60 papers in 3/4 of an hour. At this rate, how many newspapers will Mr Palacios deliver in 2 1/4 hours?

Back

180 newspapers

Front

Write an equation for the proportional relationship between the number of hours (h) worked and the amount of money earned (m) at a rate of $15 per hour.

Back

m = 15h

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

What does it mean for a graph to pass through the origin?

Back

It means that when both variables are zero, the point (0,0) is on the graph.

Front

How do you calculate a percentage discount?

Back

Multiply the original price by the discount percentage and subtract from the original price.

Front

If a person runs 6 miles in 60 minutes, what is their speed in miles per minute?

Back

0.1 miles per minute.

Front

What is the formula for finding the unit rate?

Back

Divide the total quantity by the number of units.