Writing Equations Answers

14 verified answers
1
Free Preview

Which sentences describe the relationship between an expression and an equation? Select all that apply.

A
An equation contains variables; an expression never does.
B
An equation contains an equal sign; an expression does not.
C
Both expressions and equations contain numbers and/or variables.
D
An expression has addition and subtraction; an equation never does.
E
An expression involves multiplication, but equations only use addition.
2
Free Preview

x – 4 = 12.5 can be written in words as:

A
The difference of a number and x.
B
The sum of a number and 4 is 12.5.
C
x subtracted from 4 is equal to 12.5.
D
A number decreased by 4 is the same as 12.5.
3

Which are equations? Select all that apply.

A
Option
Option A
B
3.1 + x – 9
C
x – 4.8 = 9
D
Option
Option D
E
x – 3.1x = 14.7 + 12
4

Question text not available

Answers:
Selection 1:2x
Selection 2:2x + x
Selection 3:2x + x = 60
5

The variable is ✔ x5-3.2 -14.7.

Answers:
.:x
.:5
.:-3.2 and -14.7
.:5x + (-3.2) = -14.7
7

The constants are 5 and -3.25 and -14.7✔ -3.2 and -14.75 and x.

A
5 and -3.2
B
5 and -14.7
C
✔ -3.2 and -14.7
D
5 and x
8

The equation is ✔ 5x + (-3.2) = -14.75 + (-3.2x) = -14.75x – 14.7 = -3.25x + (-14.7) = -3.2x.

A
✔ 5x + (-3.2) = -14.7
B
5 + (-3.2x) = -14.7
C
5x – 14.7 = -3.2
D
5x + (-14.7) = -3.2x
10

Which statement is modeled by the bar diagram?

A
Five times a number plus itself is 8.
B
Eight is five times a number.
C
Five times a number is eight minus the number.
D
A number plus eight is five times the number.
11

What expression represents the amount of money Brittney has? ✔ 2x2/x2 + x2 - x

Answers:
Selection 1:2x
Selection 2:2x + x
Selection 3:2x + x = 60
14

Write an equation to represent the scenario.

A
23.75 + 25.65 = x
B
25.65 + x = 23.75
C
23.75 + x = 25.65
D
x = 25.65 + 1.90

Did you find these answers helpful?