6th math winter exam review :)

Front

What is the total cost of 6 books if each book costs the same amount and the total is $45.00?

Back

Each book costs $7.50.

Front

What is the equivalent expression for (3p + 2) · 7?

Back

21p + 14.

Front

If a shaded model represents 100%, what model represents 33 1/3%?

Back

Model C.

Front

What is the scale of a model classroom if 2 inches represents 3 feet?

Back

The scale is 2 inches:3 feet.

Front

How do you find the length of a model in inches if the actual classroom is 30 feet?

Back

Use the proportion 2/3 = x/30.

Front

What is the equivalent expression for 3(x + 6)?

Back

3x + 18.

Front

What is a proportion?

Back

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

Front

How do you calculate the cost per item?

Back

Divide the total cost by the number of items.

Front

What does it mean for two expressions to be equivalent?

Back

They have the same value for all values of the variable.

Front

What is the distributive property?

Back

a(b + c) = ab + ac.