Chapter 8 Equations and Inequalities

Identify the solution to the equation 4x - 8 = 16

• x = -4

• x = 2

• x = 6

• x = 10

Identify the solution to the inequality 3y + 6 < 15

• y > 3

• y = 3

• y < 6

• y < 3

Select the equations that have the solution n=9. Mark all that apply.

• 4+n=5

• 7=n - 2

• 14= n+5

• 9 + n =17

Aiden is sorting through the coins in her piggy bank to determine how much money she has. She sees that she has $3.25 in quarters. The equation 0.25x=$3.25 can be used to figure out how many quarters are in Aiden's piggy bank. She uses substitution to determine that she has ______ quarters.

• 10

• 11

• 12

• 13

Gray's family went to the movie theater and bought tickets and popcorn. They spent $35 altogether with $9.50 spent on popcorn. Write an equation that can be used to find out how much money x they spent on tickets.

• x - $9.50 =$35

• x * $9.50 =$35

• x + $9.50 =$35

• x / $9.50 =$35

THE MOST Charlotte will pay for a pair of jeans is $30 . This could be written as c≤$30 Choose two possible solutions for the inequality.

• $30

• $40

• $35

• $19.99

Determine whether y=8 is a solution for the equation 5y=40.

• Yes it is a solution

• No it is not a solution

Patrick owns a restaurant that gets peppers delivered daily Each day, 5/8 of the peppers are green, There are 45 green peppers in each delivery. The equation 5/8 x=45 can be used to solve how many peppers there are in total. How many peppers are in the delivery?

• x=64

• x=72

• x=78

• x=84

Dalton gets 2/3 of his essay typed in 30 minutes. The equation 2/3x=30 can be used to find how long wit will take him to type the whole essay. Solve the equation. Solve the equation to find out many minutes it will take Dalton to write the essay.

• x=45

• x=60

• x=50

• x=35

There is a number line graph with a closed dot on the number twelve and the line and arrow are pointing to the right. Choose the inequality that describes this graph.

• f>12

• f<12

• f≥12

• f≤12