Multiple Choice
Which is an example of an algebraic expression?
(1 point)
Responses
4(3 + 8)
4(3 + 8)
182
18 2
3 – a
3 – a
21 • 4
9 answers
21 • 4
Which is an algebraic expression for 5 more than z?
(1 point)
Responses
5z
5 z
z + 5
z + 5
5z + 5
5 z + 5
5 – z
(1 point)
Responses
5z
5 z
z + 5
z + 5
5z + 5
5 z + 5
5 – z
z + 5
Which word phrase can be used to represent the algebraic expression 4(21 + n)?
(1 point)
Responses
4 plus the sum of 21 and a number n
4 plus the sum of 21 and a number n
4 times the product of 21 and a number n
4 times the product of 21 and a number n
4 times the sum of 21 and a number n
4 times the sum of 21 and a number n
4 less than the sum of 21 and a number n
(1 point)
Responses
4 plus the sum of 21 and a number n
4 plus the sum of 21 and a number n
4 times the product of 21 and a number n
4 times the product of 21 and a number n
4 times the sum of 21 and a number n
4 times the sum of 21 and a number n
4 less than the sum of 21 and a number n
4 times the sum of 21 and a number n
"8 less than the product of 12 and a number x" can be described by which algebraic expression?
(1 point)
Responses
12x – 8
12 x – 8
8 – 12x
8 – 12 x
12 – 8x
12 – 8 x
8x – 12
(1 point)
Responses
12x – 8
12 x – 8
8 – 12x
8 – 12 x
12 – 8x
12 – 8 x
8x – 12
12x - 8
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?
(1 point)
Responses
2.5 + r
2.5 + r
2.5r + r
2.5 r + r
2.5
2.5
2.5r
(1 point)
Responses
2.5 + r
2.5 + r
2.5r + r
2.5 r + r
2.5
2.5
2.5r
2.5r