Math 1 Unit 4 Review - Equations & Inequalities

The start up cost to join eTunes music is $7.95 plus $0.95 per song downloaded. If Will spent $26, write and solve a linear equation to find how many songs he downloaded.

• 7.95 + 0.95x = 26; x = 32 songs

• 0.95 + 7.95x = 26; x = 3 songs

• 7.95 + 0.95x = 26; x = 19 songs

• 0.95 + 7.95x = 26; x = 19 songs

Tags

CCSS.7.EE.B.4A

Johnny earns $15 per hour dog walking. He wants to earn at least $105 to buy a new bike. Which inequality represents how long Johnny needs to work to afford his new bike?

• 15h ≤ 105

• 15h > 105

• 15h = 105

• 15h ≥ 105

Tags

CCSS.6.EE.B.8

Solve for p
 $K=\frac{pa}{2}$ 

•  $K-\frac{1}{2}a\ =\ p$ 

•  $\frac{2K}{a}=p$ 

•  $\frac{K}{2a}=p$ 

•  $2K-a\ =\ p$ 

Tags

CCSS.HSA.CED.A.4

Solve for p
 $A=hp+B$ 

•  $\frac{A-B}{h}=p$ 

•  $\frac{A}{h}-B=p$ 

•  $\frac{A-h}{B}=p$ 

•  $\frac{A+B}{h}=p$ 

Tags

CCSS.HSA.CED.A.4

Which inequality represents all possible solutions for

7(x + 3) < 5x + 13

• x > -4

• x < 17

• x < -4

• x > -17

Solve the equation, if possible.
 $13k-3\left(k+11\right)=8k-7$ 

• -20

• all real numbers

• no real solution

• 13

What inequality does the number line graph represent?

• -5x + 2 ≤ 22

• -5x + 2 ≥ 22

• -5x + 2 > 22

• -5x + 2 < 22

Tags

CCSS.7.EE.B.4B

Katie wants to have more than $200 in her bank account by the end of the month. She currently has $25 in her bank account. Katie makes $12 for each dog that she walks.

Which inequality could help you find how many dogs Katie would have to walk to reach her goal?

• 12x - 25 ≥ 200

• 12x + 25 > 200

• 25x + 12 > 200

• 12x +25 < 200

Tags

CCSS.7.EE.B.4B

Solve:
 $\frac{1}{3}\left(2x-4\right)=12$  
Only type in your numerical answer.

Tags

CCSS.7.EE.B.4A

 $\frac{\left(-3x+4\right)}{5}=-4$  Solve the following equation and only type the numerical solution as your answer.

Tags

CCSS.7.EE.B.4A