Unit 4 Study Guide

Front

Solve the inequality: 1/2x < 15

Back

x < 30

Front

Write an inequality for the minimum height to ride the water slide (60 inches).

Back

x > 60

Front

Solve: n + 7.8 = 15

Back

n = 7.2

Front

Which equation has x = 8 as the solution? 2 + x = 7, 4 + x = 12, 5x=35, 2x=18

Back

4 + x = 12

Front

Chris watches TV twice as much as Sam. If Chris watched for 38 hours, how many hours did Sam watch?

Back

19 hours

Front

What is an inequality?

Back

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

Front

What does it mean if x < 10?

Back

It means that the value of x is less than 10.

Front

How do you solve the equation x + 5 = 12?

Back

Subtract 5 from both sides: x = 12 - 5, so x = 7.

Front

What is the solution to the equation 3x = 21?

Back

x = 7.

Front

If 2x + 3 = 11, what is x?

Back

x = 4.