Equations and Inequalities Palmer

Trapper and Mallory are trying to solve an equation. The objective when solving an equation is to....

(a)  

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Tags

10.A

10.B

11.A

11.B

10.C

Trapper and Yuliana are solving an equation:
11 - 3x = 44. What is the first step they should take?

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

Tags

10.A

10B

10C

11A

11B

Brody bought 3 packs of markers and 5 individual markers. In total, he has 23 markers. Solve for k:
3k + 5 = 23

Julie bought 8 packs of markers and gave away 10 markers. Now she has 14 markers. Solve for the number of markers in each pack (x):
8x - 10 = 14

Hunter has $13 to spend. If he buys a toy that costs $5, how much money can he have left?
x + 5 ≤ 13

• x ≥ 8

• x ≥ 18

• x ≤ 8 

• x ≤ 18 

When Julie has b < 6 apples, would you use an open or closed circle to represent this on a number line?

• Open ○

• Closed •

Brody has 4 less than 7 times as many toy cars as Trapper(c). If Brody has 9 cars, which equation shows how to find the number of cars Trapper has?

• 7c/9 = 4

• 7c + 4 = 9

• 7c - 4 = 9

• 7c + 9 = 4

Mallory is saving to buy a pair of shoes that cost $120. She has saved $30 and is going to save $25 a week. Which equation will show her how many weeks she must save?

• 30 + 25w = 120

• 55w = 120

• 30w + 25w = 120

• 120 + 30 = 25w

Write an equation from the following description: Yuliana's Dad started a savings account for her by putting in $50 to start with. Every month then Yuliana is to put in $10. 
(a)  

• y=10x+50
• y=50x+10

• y=1/50 x+10

• y=1/10 x+50

Which of the following situations could be described by the equation y=120-25x?

• There are 120 people in the football stadium, and 25 more are entering each hour.

• A plumber charges $25 for a house call and $120 per hour.

• A teacher has 120 students. Her third period has 25 students

• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute