7th Grade Math Review: Expressions and Equations

Solve the following equation and choose the correct solution for n.

 $61=9n+7$  

• n = 5

• n = 6

• n = 7

• n = 8

Tags

CCSS.7.EE.B.4A

A submarine is submerged in the sea at a depth of -560 meters. If the submarine ascends at a rate of 18 meters per minute, how many minutes will it take the submarine to reach a depth of -272 feet?

• 10 minutes

• 12 minutes

• 14 minutes

• 16 minutes

Tags

CCSS.6.EE.B.7

CCSS.6.NS.C.5

CCSS.6.NS.C.6

CCSS.6.RP.A.3

Factor out the following expression using the Greatest Common Factor. 

 $-72+24x-36y$  

• 8(-9+3x-4y)

• 12(-6+2x-3y)

• 12(6-2x+4y)

• 9(-8+15x-4y)

Tags

CCSS.7.EE.A.1

 $-2x+3>7$  

What is the solution to the inequality?

• x<-5

• x<-2

• x>2

• x>-2

Tags

CCSS.7.EE.B.4B

Simplify the expression using the distributive property and combining like terms.

 $-10y+3\left(4y+10x\right)$  

• -22y+30x

• 22y+30x

• 2y+30x

• -2y-30x

Tags

CCSS.6.EE.A.3

 $-\left(2c-4\right)-9c-12$  

Simplify

• -11c-8

• 7c-16

• 11c-16

• 7c-8

Tags

CCSS.7.EE.A.1

Which expressions can be used to represent the perimeter (p) and the area (a) of the rectangle below?

• p=20m+24 a=12m+15

• p=6m+24 a =10m+12

• p=3m+12 a=21m+35

• p=6m+24 a=21m+35

Tags

CCSS.6.EE.B.6

If the triangle is an equilateral triangle, what is the value of x?

• x = -5

• x = 5

• x = 23

• x = 4

Tags

CCSS.7.EE.B.4A

Which inequality has the solution graphed on the number line?

• $x\le-1$

• $x<-1$

• $x>-1$

• $x\ge-1$

Tags

CCSS.6.EE.B.8

As a sales employee, you are paid $75.00 per week, plus an additional $5.00 per sale. This week you have set a goal to make at least $130.00. Choose the inequality that represents the number of sales you need to make, and describe the solution set.

• $75x+5\ge130$ ; you must make 11 or more sales to reach your goal

• $5x+75\ge130$ ; you must make 11 or more sales to reach your goal

• $5x+75\le130$ ; you must make 11 or less sales to reach your goal

• $75x-130\le5$ ; you must make exactly 11 sales to reach your goal

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.B.8

CCSS.6.EE.B.5