Creating Algebraic Expressions

Which of the following expressions contains the variables x, y, and z?

• 4x + 6y + 10z

• 4x + 6y

• 4x + 10z

• 6y +10z

Which of the following answer choices is NOT an example of a variable?

• 8

• x

• u

• n

Translate this phrase into an algebraic expression.
Use d to represent Victoria's test score.

• 24x

• x - 24

• x + 24

• x/24

Translate this phrase into an algebraic expression.
8 less than the product of 4 and a number
Use the variable m to represent the unknown number.

• 4m + 8

• 8m - 4

• 8m + 4

• 4m - 8

• 20v+10
• 20p+10v
• 10(v+p)
• 30(v+p)

• A

• B

• C

• D

Let "p" represent the number of paper clips in a box.  If there are 76 boxes in a case, write an algebraic expression to show the total number of paper clips.

• 125p

• 76(p)

• 76 + p

• 125 = p

4 divided by the sum of a number and 12

• 4 / n + 12

• 4 / 12n

• 4 / (n + 12) 

• (4 / n) + 12

Twenty decreased by x

• 20+x

• 20/x

• x-20

• 20-x

Evaluate the expression using the values
 m = 7, r = 8, and t = 2.
4m + t

• 30

• 28

• 26

• 14