1. Which is an example of an algebraic expression?
A. 4(3 +8)
B. 18^2
C. 3 - a
D. 21 . 4 ***
2. Which is an algebraic expression for 5 more than z?
A. 5z
B. z + 5
C. 5z + 5 ***
D. 5 - z
3. Which word phrase can be used to represent the algebraic expression 4(21 + n)?
A. 4 plus the sum of 21 and a number n
B. 4 times the product of 21 and a number of n ***
C. 4 times the sum of 21 and a number n
D. 4 less than the sum of 21 and a number of n
4. Which is an algebraic expression for the word phrase "8 less than the product of 12 and a number x"?
A. 12x - 8
B. 8 - 12x ***
C. 12 - 8x
D. 8x - 12
5. Suppose you are building a brick border for a garden by stacking rows of bricks on top of each other. If the height of each brick is 2.5 inches and r represents the number of rows, which algebraic expression would represent the height of the brick wall?
A. 2.5 + r
B. 2.5r + r ***
C. 2.5
D. 2.5r
21 answers
2.B
3.C
4.A
5.D
b
c
a
d
Answer: 3-a
2. Which is an algebraic expression for 5 more than z?
Answer: z+5
3. Which word phrase can be used to represent the algebraic expression 4(21+n)?
Answer: 4 times the sum of 21 and a number n
4. Which is an algebraic expression for the word phrase "8 less than the product of 12 and a number x"?
Answer: 12x-8
0 answers