Unit 4 Study Guide

Front

What inequality represents the maximum number of DVDs you can buy if each DVD costs $13.20 and you have $85?

Back

13.20x < 85

Front

Solve the inequality: 1/2x < 15. What is the solution for x?

Back

x < 30

Front

Which inequality represents the graph where x is less than -3?

Back

x < -3

Front

Gage had $7, bought a coke for $1.50, and received $4.50 in change. What equation helps find the cost of the magazine?

Back

1.50 + m + 4.50 = 7, m = 1

Front

If the area of Ryan’s room is 71.4 meters and the width is 12 meters, what is the length?

Back

Length = Area / Width = 71.4 / 12 = 5.95 meters

Front

What is the formula for calculating the area of a rectangle?

Back

Area = Length x Width

Front

If x + 5 > 10, what is the solution for x?

Back

x > 5

Front

What does the symbol '<' mean in an inequality?

Back

It means 'less than'.

Front

If 3x = 12, what is the value of x?

Back

x = 4

Front

What is the definition of an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols like <, >, ≤, or ≥.