Quiz about Math 8 Test #1 Review

Question 1

Which fraction(s) below are equivalent to $$-\frac{1}{2}$$ ?

(Check all that apply)

Accepted Answer

$$\frac{-3}{6}$$

Accepted Answer

$$\frac{6}{-12}$$

Accepted Answer

$$-\frac{9}{18}$$

Answer

$$\frac{-5}{-10}$$

Answer

$$\frac{-4}{-8}$$

Question 2

Which expression is equivalent to the expression below?

$$-4\left(x-5\right)+8\left(x+3\right)$$

Accepted Answer

$$4x+44$$

Answer

$$4x+4$$

Answer

$$12x+4$$

Answer

$$12x+44$$

Question 3

Which expression is equivalent to the expression below?

$$3\left(2x+9\right)-2\left(x+7\right)$$

Accepted Answer

$$4x+13$$

Answer

$$4x+41$$

Answer

$$8x+41$$

Answer

$$8x+13$$

Question 4

Which equation below has no solution?

Accepted Answer

$$3x-5=3x-12$$

Answer

$$3x+5=5$$

Answer

$$5x+3=x-9$$

Answer

$$4x+3=3+4x$$

Question 5

Which equation below has infinitely many solutions?

Accepted Answer

$$\frac{1}{2}x+4=\frac{1}{2}x+4$$

Answer

$$\frac{x}{4}+3=15$$

Answer

$$2x-11=2x+4$$

Answer

$$6x-5=5-6x$$

Question 6

A rectangle has a length that is four feet more than twice its width.

Which expression would represent the length of the rectangle in terms of w?

Accepted Answer

$$2w+4$$

Answer

$$2\left(w+4\right)$$

Answer

$$\frac{w}{2}+4$$

Answer

$$4w+2$$

Question 7

Which algebraic equation represents the statement below?

"3 more than 4 times a number is equal to 27."

Accepted Answer

$$4x+3=27$$

Answer

$$3-4x=27$$

Answer

$$3x+4=27$$

Answer

$$4x-3=27$$

Question 8

How many solutions does the equation $$5\left(4x+6\right)=2\left(10x+15\right)$$

Accepted Answer

Infinitely Many Solutions

Answer

One Solution

Answer

No Solution

Answer

Two Solutions

Question 9

An electrician charges a $50 service fee to schedule a house visit as well as $40 per hour spent working. If a recent service call cost $210, which equation below can be used to determine the total number of hours the electrician spent working, h?

Accepted Answer

$$40h+50=210$$

Answer

$$50h+40=210$$

Answer

$$40h=210$$

Answer

$$90h=210$$

Question 10

Luna earns $12 per hour plus tips at her job as a server. On a recent night, Luna earned $60 in tips and determined she earned a total of $132 that night. Which equation below can be used to determine the total number of hours, h, that Luna worked?

Accepted Answer

$$12h+60=132$$

Answer

$$12h-60=132$$

Answer

$$12h=132$$

Answer

$$60h+12=132$$

Question 11

What is the solution to the equation below?

$$\frac{x}{4}+15=7$$

Accepted Answer

$$x=-32$$

Answer

$$x=-2$$

Answer

$$x=5.5$$

Answer

$$x=88$$

Question 12

What is the solution to the equation below?

$$-0.4x+7.5=4.7$$

Accepted Answer

$$x=7$$

Answer

$$x=-30.5$$

Answer

$$x=12.6$$

Answer

$$x=11.8$$

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