Equation and Inequalities Review

Wendy is making lemonade. As shown below, Wendy mixes water and lemon juice. Which equation shows how much lemon juice is needed for 6 ounces fo water?

• j = 6/3

• 6j = 3

• j = 6(2)

• 6 = j/2

Paul graphed the equation y = x. Which point does the graph NOT pass through

• (0, 0)

• (6, 6)

• (9, 9)

• (12, 14)

Is x = 12 a solution of x + 15 = 4

• YES

• NO

Greta cut a ribbon into 12 pieces. Each piece was 6 inches long. Use the model below to write an equation to find the length of the ribbon she started with. Use a as the variable.

Mathematical Equivalence

ON

Graph the equation y = x + 2

Where is the point A located on the coordinate grid?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

The table show how much Eric earns. Write an equation that relates a, the number of hours worked to b, his pay.

Mathematical Equivalence

ON

Ashley finds masking tape in packages of 4 rolls for $4.32. What is the cost of one roll in  the package?

• 4x = 4.32

• 4.32x = 4

• 4(4.324) = x

• 4/ 4.32 = x

Andrew has saved $55 toward the purchase of an IPOD. The IPOD costs $145. Which equation represents the amount Andrew needs to save to by the IPOD?

• 55 + x = 145

• 145x = 55

• 55 - x = 145

• 145 (55) = x

In 2010, a tree was 8 feet tall. In 2011 the tree was 14 feet tall. Which equation would be used to find how many feet the tree grew?

• f + 8 = 14

• f - 8 = 14

• f/8 = 14

• 8f=14