10 questions
The model represents an equation.
What value of x makes the equation true?
3
8
6
4
A model for an inequality is shown.
What is the solution to this inequality?
x > −18
x > 9
x > 21
x > −42
Which equation is true when the value of x is −12?
½x +22 = 20
15 − ½x = 21
11 − 2x = 17
3x − 19 = −17
Jeff bought a bottle of water for $2. He also bought some hot dogs for $3 each. Jeff did not spend more than $14 on the hot dogs and the bottle of water. Which inequality can be used to find h, the number of hot dogs that Jeff could have bought?
3h − 2 ≤ 14
3h + 2 ≤ 14
3h − 2 ≥ 14
3h + 2 ≥ 14
An equation is modeled.
What value of x makes the equation true?
−1
7
−5
1
Which number line represent the solution to the inequality −7x −13 ≥ 8?
Line A
Line B
Line C
Line D
1. Which situation is best represented by the following equation?
45w + 123.95 = 753.95
Erica paid $753.95 for dance classes. She paid a $45 registration fee and $123.95 for each week she was enrolled in the classes. What is w, the number of weeks Erica was enrolled in dance classes?
Erica and her sister paid $753.95 for dance classes. Erica paid $123.95 for each week she was enrolled in the classes, and her sister paid $45 for each week she was enrolled in the classes. What is w, the number of weeks Erica and her sister were enrolled in dance classes?
Erica paid $753.95 for dance classes. She paid a $123.95 registration fee and $45 for each week she was enrolled in the classes. What is w, the number of weeks Erica was enrolled in dance classes?
Erica paid $753.95 for dance classes. She paid a $123.95 for each week she was enrolled in the classes after using a coupon that gave her $45 off the price per week. What is w, the number of weeks Erica was enrolled in dance classes?
The model represents an equation.
What is the solution for this equation?
x = 1
x = –2
x = –3
x = 5
The solution to the inequality 5x − 4 > 21 is represented by which number line?
What is the value of x in this equation?
2x + 2 = −52
−25
−27