Topic 4 Study Guide

Front

Simplify the expression: −4b + 8c + 12 − 8b − 2c + 6

Back

−12b + 6c + 18

Front

What is the total number of ice cream cones sold if 8x + 16 were sold on Saturday and 7x – 9 were sold on Sunday?

Back

15x + 7

Front

Simplify the expression: 2(10) + 2(x – 4)

Back

2x + 12

Front

Calculate the total cost for 3 pounds of grapes at $2.19 per pound, 3 pounds of bananas at $0.59 per pound, and 2 pounds of pears at $1.49 per pound.

Back

$11.32

Front

How many ounces are in a container after pouring 2.25 ounces per second for 4 seconds into a container that starts with 11.5 ounces?

Back

20.5 ounces

Front

What is the coefficient of x in the expression 5x + 3?

Back

5

Front

Define a variable in mathematics.

Back

A symbol used to represent an unknown value.

Front

What is the distributive property?

Back

a(b + c) = ab + ac

Front

What is the sum of the angles in a triangle?

Back

180 degrees

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators without an equality sign.