Excel in math and science.

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

Your answer seems reasonable. Find out if you're right!

That seems reasonable. Find out if you're right!

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

Algebra

Linear Inequalities

Concept Quizzes

Linear Inequalities Warmup
Finding Solutions to Linear Inequalities
Inequalities - Solution Set
One-Step Linear Inequalities
Multi-Step Linear Inequalities
Two-sided Linear Inequalities
Absolute Value Linear Inequalities
Linear Inequalities Word Problems
Linear Inequalities - Problem Solving

Challenge Quizzes

Linear Inequalities: Level 1 Challenges
Linear Inequalities: Level 2 Challenges
Linear Inequalities: Level 3 Challenges

Linear Inequalities: Level 1 Challenges

Which inequality is represented in the above number line?

x\geq -2

x <-2

x \leq -2

x>-2

Show explanation

View wiki

by Gabe Smith

Are you sure you want to view the solution?

Cancel Yes I'm sure

The diagram shows how a mobile will be balanced when left to hang.

What are the relative weights of these shapes?

Triangle > Rectangle > Circle Circle > Rectangle > Triangle Rectangle > Triangle > Circle Circle > Triangle > Rectangle Rectangle > Circle > Triangle Triangle > Circle > Rectangle

Show explanation

View wiki

by Chung Kevin

Are you sure you want to view the solution?

Cancel Yes I'm sure

Paula Picasso makes her living by painting. She paints small portraits for $20, large landscapes for $50, and masterpieces for $1000.

Paula's goal is to make at least $2800. She has already sold 1 masterpiece and 23 landscapes. How many portraits must she sell to reach her goal?

Show explanation

View wiki

by skull blade

Are you sure you want to view the solution?

Cancel Yes I'm sure

You should know that

$\frac{a}{b} + \frac{c}{d} \ne \frac{a+c}{b+d}.$

However, if $a, b, c, d$ are positive integers that satisfy $\frac{a}{b} < \frac{c}{d},$ what can we say about $\frac{a+c}{b+d} ?$

0 < \frac{a+c}{b+d} < \frac{a}{b}

\frac{c}{d} < \frac{a+c}{b+d}

Cannot be certain

\frac{a}{b} < \frac{a+c}{b+d} < \frac{c}{d}

Show explanation

View wiki

by Chung Kevin

Are you sure you want to view the solution?

Cancel Yes I'm sure

These two numbers are very close together:

$\large \frac{122}{353} \approx 0.3456, \ \ \ \ \ \frac{75}{217} \approx 0.3456$

Which of these numbers is larger?

\frac{75}{217}

They are both equal

\frac{122}{353}

Show explanation

View wiki

by Chung Kevin

Are you sure you want to view the solution?

Cancel Yes I'm sure