Writing Equations with 1 Variable
Write the word sentence as an equation:
The product of a number m and 2 is 8
2m = 8
Solve the equation:
x - 1 = 8
x = 9
Solve the equation:
4c = 32
c = 8
Tell whether the ordered pair is a solution of the equation:
y = 3x + 1; (2, 7)
Yes, the ordered pair is a solution
Write a word sentence for the inequality:
A number z divided by 2 is at least -6
z/2 > -6
Write the word sentence as an equation:
6 less than a number t is 7
t - 6 = 7
Solve the equation:
m + 7 = 11
m = 4
Solve the equation:
7q = 42
q = 6
Tell whether the ordered pair is a solution of the equation:
y = 7x - 4; (4, 22)
No, the ordered pair is not a solution
What symbol uses the phrase "is at most"?
<
Write the word sentence as an equation:
A number m increased by 5 is 7
m + 5 = 7
Solve the equation:
21 = p - 12
p = 33
Solve the equation:
k/3 = 21
k = 7
Tell whether the ordered pair is a solution:
y = 12x; (3, 32)
No
What does the graph of the following inequality look like:
x > 2
Closed dot
Arrow to the right
Write the word sentence as an equation:
8 is the quotient of a number g and 3
g/3 = 8
Solve the equation:
6 + k = 14
k = 8
Solve the equation:
a/5 = 25
a = 125
Tell whether the ordered pair is a solution:
y = 4x - 3; (3, 9)
Yes
What does the graph of the following inequality look like:
x < 6
Open dot
Arrow to the left
Write the word sentence as an equation:
The quotient of a number b and 6 is 9
b/6 = 9
Solve the equation:
z + 5 = 13
z = 8
Solve the equation:
0.5x = 18
x = 36
A cheese pizza costs $5. Additional toppings cost $1.50 each. Write an equation with two variables that represents the total cost of a pizza.
c = 1.50t + 5
Tell whether the given value is a solution to the inequality:
3z > 6; z = 3
9 > 6
Yes