Vocabulary
What is a solution set?
all of the answers that make an inequality statement true
What equation is true when c = 3?
a. 2c + 8 = 31
b. 9 - 6c = 0
c. 6 + 4c + 2 = 20
c. 6 + 4c + 2 = 20
Solve the equation
-12x - 7 = 53
x = -5
Jimmy rode a bicycle for 20 miles over 5 days. The first day Jimmy rode 4 miles. The next 4 days, Jimmy rode a bicycle the same amount each day. How many miles did Jimmy ride on each of the following 4 days?
x = 4
What is the difference between open and closed circles? When do you see each?
open is for greater than and less than
closed is for greater than or equal to and less than or equal to
Which equation is true when k = -15?
a. 3k - 11 = - 34
b. k/3 + 17 = 12
c. -53 + 4k = 7
b. k/3 + 17 = 12
Solve the inequality
- 1/2 x + 3 ≥ 5
x ≤ -4
The principal has given a students $85 for a field trip. The students are selling cookies for $3 each to raise the rest of the money they need. The field trip costs $285. Which inequality shows the amount of cookies that the students would need to sell to earn at least $285.
a. 3c + 85 > 285
b. 3c - 85 < 285
c. 3c + 85 ≥ 285
d. 3c + 85 ≤ 285
c. 3c + 85 ≥ 285
The following words mean what inequality symbol?
"no more than"
"at most"
less than or equal to
If x = -6, which inequality is NOT true?
a. -5 - 3x > 10
b. -3 - 5x < -14
c. -2 - 4x > 20
b. -3 - 5x < -14
Draw a number line to show the solution set of -4x +29 > 19
open circle at 2.5, arrow to the left
A moving company truck cannot exceed 1,200 pounds. The truck is loaded with a piano that weighs 400 pounds. Boxes that weigh 50 pounds each will also be loaded. Write an inequality to show the solution set that represents how many boxes can be loaded into the moving truck.
50b + 400 ≤ 1,200