Unit 5 Test Review

Front

What is the formula to calculate hourly wage?

Back

Hourly Wage = Total Earnings / Total Hours Worked

Front

If a ratio is 3:5 and there are 30 tenants, how do you find the number of cars?

Back

Use the ratio to set up a proportion: 3/5 = 30/x, then solve for x.

Front

How do you calculate speed in miles per hour?

Back

Speed = Total Distance / Total Time

Front

If hamburger costs $6 for 3 pounds, how do you find the cost for 10 pounds?

Back

First find the cost per pound: $6 / 3 = $2 per pound. Then multiply by 10 pounds: $2 * 10 = $20.

Front

What is the simplest form of the ratio 15:6?

Back

Divide both sides by their greatest common divisor (3): 15/3 : 6/3 = 5:2.

Front

What does it mean to simplify a fraction?

Back

To reduce a fraction to its lowest terms by dividing the numerator and denominator by their greatest common divisor.

Front

How do you convert a ratio to a fraction?

Back

Write the first number as the numerator and the second number as the denominator.

Front

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

Back

Distance = Speed x Time; this formula can be rearranged to find any of the three variables.

Front

How do you find the unit rate from a total cost and quantity?

Back

Unit Rate = Total Cost / Quantity.

Front

What is a proportion?

Back

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