Which is an algebraic expression for 5 more than z?
Responses
5z
5z - no response given
z + 5
z + 5 - no response given
5z + 5
5z + 5 - no response given
5 – z
5 + z - no response given
Which word phrase can be used to represent the algebraic expression 4(21 + n)?
Responses
4 plus the sum of 21 and a number n
4 plus the sum of 21 and a number n - no response given
4 times the product of 21 and a number n
4 times the product of 21 and a number n - no response given
4 times the sum of 21 and a number n
4 times the sum of 21 and a number n - no response given
4 less than the sum of 21 and a number n
4 times the sum of 21 and a number n - no response given
"8 less than the product of 12 and a number x" can be described by which algebraic expression?
Responses
12x – 8
12x – 8 - no response given
8 – 12x
8 – 12x - no response given
12 – 8x
12 – 8x - no response given
8x – 12
12x - 8 - no response given
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?
Responses
2.5 + r
2.5 + r - no response given
2.5r + r
2.5r + r - no response given
2.5
2.5 - no response given
2.5r
2.5r - no response given
What determines an atom’s identity?
Responses
the valence number
the valence number - no response given
the number of protons
the number of protons - no response given
the number of electrons
the number of electrons - no response given
the number of neutrons
the number of protons - no response given
To determine the algebraic expression for "5 more than z," we need to start with the variable z and add 5 to it.
The correct expression is z + 5.
To understand why this is the correct expression, let's break it down:
- The variable z represents an unknown number or value.
- When we say "5 more than z," we are indicating that we need to add 5 to z.
- Adding 5 to z is represented by the addition symbol "+", so we write z + 5.
Therefore, z + 5 is the algebraic expression that represents "5 more than z."