
Modeling Inequalities
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Greens are positive, reds are negative. Solve for x
x<7
x>7
x<14
x<4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Daniel can spend no more than $40 at the fair. If admission into the fair is $10 and the rides cost $1.50 each, which inequality represents the greatest number of rides Daniel can go on?
10x + 1.50 ≥ 40
1.50x + 10 ≤ 40
1.50x + 10 <40
10x + 1.50 < 40
Tags
CCSS.7.EE.B.4B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Karen has $25 to buy her best friend a gift. How much can the gift cost?
Let x represent the cost of the gift.
x > 25
x ≥ 25
x < 25
x ≤ 25
Tags
CCSS.6.EE.B.8
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When the temperature falls to -19oF or below, school is cancelled. Which inequality shows the temperatures that would close school?
x > -19
x ≥ -19
x < -19
x ≤ -19
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
A carpenter has $60 with which to buy supplies. The carpenter needs to buy both nails and screws. Nails cost $12.99 per box, and screws cost $14.99 per box. If n represents the number of boxes of nails and s represents the number of boxes of screws, which of the following systems of inequalities models this situation?
{12.99n+14.99s 60
{n 1
{s 1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Your taxi fare is $2.50 per mile, plus a $5 fee. You cannot exceed $20. Which inequality models this scenario?
5x + 2.50 ≤ 20
2.50x + 5 < 20
2.50x + 5 ≤ 20
7.50x < 20
Tags
CCSS.7.EE.B.4B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for x
x > 8
x < 9
x > 10
x < 7
Tags
CCSS.7.EE.B.4B
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