Expressions and Equations Quiz

Which of the following is the value of the expression shown below when x=2?

5(x + 7) - 2(x - 4)

• 49

• 51

• 58

• 62

Which expression bellow is equivalent to the one shown?

-3(x - 7) + 5(2x + 4)

• 7x + 41

• 9x + 49

• -x + 40

• 13x - 37

 Which value below solves the equation:

 $\frac{1}{2}y\ +\frac{8}{3}=\frac{9}{2}$  ?

•  $\frac{11}{12}$  

•  $1\frac{7}{12}$  

•  $2\frac{5}{6}$  

•  $3\frac{2}{3}$  

Which of the following values of x solves the equation shown below?

12x + 7 = 5x - 21

• x = 14

• x = 7

• x = -4

• x = -8

A rectangle has a length that is five feet more than three times its width. The perimeter of the rectangle is 66 feet. Which equation below would model the information given about this rectangle?

• 2w + 3(w + 5) = 66

• 2w + 3w + 5 = 66

• 2w + 2(3w + 5) = 66

• w + 3w + 5 = 66

Which equation below has no solutions?

• 4(x - 2) = 4x - 8

• 4x - 3 = 4x + 2

• t + 4 = 4t - 7

• 8t - 3 = t - 3

An ___________________is a mathematical “sentence” that says two things are equal. Examples: 4y - 9 = 5

• equation

• expression

• term

• inequality

An ___________________has no fractional or decimal part and can be positive or negative. Examples: -9, 0, 19, 6,701

• rational number

• integer

• irrational number

• whole number

 The formula below is used to convert a temperature in degrees Celsius, C, to a temperature in degrees Fahrenheit, F. 
 $F=1.8C+32$ 
The high temperature in a mountain city was 15°C. What was the high temperature in degrees Fahrenheit? Show your work.

Tags

CCSS.8.EE.C.7B

   Solve the following equation by first manipulating each side so that it is in simplest form.

-3(p - 5) -2(4p + 1) = 4(2p + 9) - 34 - 8p