Unit 4 Review: Proportional Relationships and Percentages

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

What is the formula to calculate percent error?

Back

Percent Error = |(Measured Value - Actual Value) / Actual Value| x 100%.

Front

How many degrees are in a right angle?

Back

90 degrees.

Front

What is the total number of degrees in a triangle?

Back

180 degrees.

Front

What does it mean to find a percentage of a number?

Back

Finding a percentage of a number means calculating how much that percentage represents in terms of the total number.

Front

If a shirt costs $20 and is on sale for 25% off, what is the sale price?

Back

The sale price is $15.

Front

What is commission in a sales context?

Back

Commission is a fee paid to a salesperson for their services, usually calculated as a percentage of the sales they make.

Front

How do you calculate a 5% raise on a $12 hourly wage?

Back

A 5% raise on $12 is $12 + ($12 x 0.05) = $12.60.

Front

What is the relationship between miles per hour and speed?

Back

Miles per hour (mph) is a unit of speed that indicates how many miles are traveled in one hour.

Front

What is the formula for calculating the total distance traveled?

Back

Total Distance = Speed x Time.