Solving Equations
Writing Equations
Writing Inequalities
Graphing/Solving
Inequalities
100
1) What value of x makes the equation x/4 =5 true
C- 20
100
5) Jared needs $120 to purchase a new bike. He already has saved $65. Suppose Jared can earn $5 per hour mowing lawns. Which equation can be used to find the number of hours, h, Jared must work to earn enough money for his new bike?
D) 5h + 65 = 120
100
15) Which inequality is shown on the number line? (Closed circle, arrow facing left at the 6)
C x is less than or equal to 6
100
21) 4x > 16 x=4
4 *4 = 16 16 is not greater than 16, so 4 is not a solution.
200
2) What value of x makes the equation 2x-4=18 true
A: 11
200
The area of a rectangle is 45 square inches. The length of the rectangle is 5 inches. Write and solve an equation to find the width of the rectangle. A=lw
45= 5w w=9
200
16) For a food to be called low fat, it has to have less than 5 grams of fat per serving. Write and solve an inequality to represent the amount of fat in a low fat serving.
f < 5 graph with an open circle and arrow pointing left
200
22) 13+n greater than or equal to 6 n=6
13+6 = 19 19 is greater than 6, so this is a solution
300
4) What value of x makes the equation x/4 -6 =2
B: 32
300
7) The chart shows the amount of money that Carla earned babysitting. If she earned a total of $60 for the week, which equation can be used to find the amount of money she earned on Friday?
B 2(15) +12 +10 +x =60
300
17) A Chick-Fil-A play place is made for children age 12 and under. Write and graph an inequality to represent the ages allowed to play on the play place.
x is less than or equal to 12 closed circle and arrow to the left
300
23) x/2 > 6 x=14
14/2 = 7 7>6 Yes, this is a solution
400
11) What operation should you use first to find the value of g that makes the equation true? 125 = 5g +30
C) Subtraction (subtract 30 from both sides)
400
A Great Dane is 5 times taller than a Chihuahua. The Chihuahua is 1/2 foot tall. Write and solve an equation to find the height of the Great Dane.
5c=d (c is chihuahua and d is great dane) 5*1/2 = 2 and 1/2 feet tall
400
18) In order to see PG-13 rated movies without a chaperone, people must be age 13 or over. Write and graph an inequality to represent the ages allowed to see PG-13 rated movies unchaperoned.
x is greater than or equal to 13 closed circle with an arrow to the right
400
20) Name the error in the graph.
The arrow is facing the wrong direction.
500
13) Solve the following equation. Check your answer. 63+14e = 91
e=2 63 +28 = 91
500
14) You bought a comic book for $4 and 3 bottles of Coke. You spent a total of $8.50. How much did each bottle of Coke cost? Write and solve an equation to find the cost of each bottle of water.
4 +3c =8.50 c= $1.50
500
19) Describe and correct the error in graphing the inequality.
The circle should be open because it is greater than.
500
24) Which of the following solutions would make the following inequality false: y is greater than or equal to 25
C) 23
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