Unit 4: Review

2a² – 8a²+ 5a³– 11a²

• - 5a² + 5a³
• -17a² + 5a³
• 5a^{2 -} 5a³

Tags

CCSS.7.EE.A.1

 $-12\left(1.2p+3.5\right)$  

•  $144p-420$  

•  $-14.4p-42$  

•  $-52.4p$  

•  $14.4p+42$  

Simplify by using the distributive property and combining like terms:

  $3\left(-11+4x\right)+7\left(6x+9\right)$  

-4x+1=21

• x=120
• x=5
• x=30
• x=-5

Tags

CCSS.7.EE.B.4A

Solve for y.

-15 = -4y + 5

• y = -5

• y = 5

• y = -24

• y = -16

• y = 80

Tags

CCSS.7.EE.B.4A

 $\frac{d}{-6}+2.35\ =\ 5.85$  

• d = -21

• d = -.583

• d = 49.2

• d = 1.366

 $-\frac{1}{8}x\ +3=-1$  

 $1.25m+7=2.5$  

•  $7.6$  

•  $-3.6$  

•  $-0.36$  

•  $-1.1$  

Tags

CCSS.7.EE.B.4A

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63
• 7x = 63
• 7x - 35 = 63
• 35x + 7 = 63

Tags

CCSS.HSA.CED.A.3

 A computer printer can print 10 pages per minute. There were already 35 pages in the tray.  The total pages printed was 115 pages.  Write an expression for the number of pages the printer can print in m minutes. 

• 10m + 35 = 115
• 10m - 35 = 115
• 115m + 35 = 10
• 35m + 10 = 115

Tags

CCSS.HSA.CED.A.3