Equations and Solutions
Which value of the variable is a solution of the equation: d + 9 = 25
a. 6
b. 14
c. 16
d. 21
e. None
C - 16
Solve for x: 8x = 64
x = 8
What does an open circle mean?
> Greater Than OR < Less Than
True or False: The dependent variable is what's changing
True
Use the equation 6x + 1 to complete the table:
x 1 2 3 4 5
y
y = 7, 13, 19, 25, 31
Which value of the variable is a solution of the equation: 2y = 30
a. 10
b. 12
c. 24
d. 36
e. None
E - None
Solve for x: x - 17 = 13
x = 30
What does a closed circle mean?
Greater Than or Equal To
Less Than or Equal To
What is an independent variable?
The thing that causes the dependent to change
Use the equation s + 1 to complete the table:
x 1.50 2 3
y
y = 2.50, 3, 4
Which value of the variable is a solution of the equation: f - 13.2 = 28.9
a. 38.7
b. 42.2
c. 45.8
d. 51.4
e. None
E - None
Solve for x: 2,488 / 48 = x
x = 119,424
Write an inequality for the following situation:
"The distance of the race, d, is at least 6 miles."
d (greater than or equal to) 6
Identify the dependent variable in the following situation:
"The distance traveled, d, and the speed, s"
Use the following table to create ordered pairs:
x 1 2 3 4 5
y 5 10 15 20 25
(1,5) (2,10) (3,15) (4,20) (5,25)
Is w = 8 a solution to the equation 5w + 45 = 158
No
Solve for x: x / 15 = 8 1/3
x = 125
Write an inequality for the following situation:
"Up to 5 people, p, visited Mary today."
p (less than or equal to) 5
Identify the independent variable in the following situation:
"The calories, c, in a snack and the amount of the snack, a
a - amount of the snack
The cross country team practices by jogging on the town's streets. The average jogging rate is 6 miles per hour. One member jogged for 3.5 hours on weekend. How many miles did the team member jog? Write an inequality for this situation.
y = 6x
True or False: 6 + 2 + 3 = 8 + 3
True - both sides equal 11
Solve for x: x - 4/8 = 4 1/4
x = 4 6/8 OR 4 3/4
Write the inequality that would match this graph description:
"Open Circle on 5, Arrow pointing to the right"
x > 5
Identify the independent and dependent variable in the following situation:
"The number of apple slices remaining, r, and the number of apple slices eaten, e
Independent = e - number of slices eaten
Dependent = r - number of apple slices remaining
Alex is making puppets for a show. He bought all the string needed for $125. It costs $18 for the remaining materials to make each puppet.
a. Write an inequality
b. Complete the table
x (puppets) 1 2 3 4 50
y (total price) 133 161
a - 18p + 125
b - 179, 197, 1,025