Module 9 Solve Problems Using Equations and Inequalities

What is the value of the missing output?

• 8
• 6
• 4
• 12

What is the value of the missing input? 

• 25
• 30
• 74
• 26

Sam wanted to keep track of the points he earned in his new racing video game. He created a function table to track his points and his laps around the track. How many laps did Sam make around the track if he earned 9 points? 

• 9
• 20
• 18
• 15

Linda sold 40 tickets.  She sold 10 more adult tickets than children tickets.  Let c = number of children tickets.  Write an equation to find how many children tickets Linda sold.

• 10c = 40
• c - 10 = 40
• c + 10 = 40
• 10 ÷ c = 40

Valley Video charges a $15 annual fee plus $3 per movie for rentals. Last year, Jennifer spent $99 at the video store. How many movies did she rent? Write the linear equation and solve for the number of movies.

• 15x + 3x = 99    and 6 movies
• 15x + 3 = 99 and 6 movies
• 3x + 15 = 99 and 28 movies
• 3x + 99 = 15 and 28 movies

Lee charges $3 for a basket and $2.50 for each pound of fruit picked at the orchard. Write an equation for the total cost of x pounds of fruit from the orchard.

• y = 3x + 2.5
• y = 2.50x + 3
• y = 2.50x 
• y = 3x + 2.50

Write an inequality for the graph.

• a > 11
• a < 11
• a ≥ 11
• a ≤ 11

Solve this equation: 9R=27

• R=3
• R<4
• R>4

Solve this equation: X+5=11

• X=6
• X<6
• X>6

Solve this equation: N+9=17

• N=8
• N<8
• N>8