Solving and Writing One Step Equations and Inequalities

Sally bought three candy bars for a total of $18.00. How much did each candy bar cost? Write an equation to solve this problem. Use c as your variable.

• 18c=6

• c + 6= 18

• c +18 = 6

• 3c=18

After dropping 5ºF, the temperature was 37ºF. Which choice models this situation?

• d - 37 = 5

• d + 5 = 37

• d - 5 = 37

• d + 37 = 5

Pete mows lawns for 15 dollars per hour (h). Write an equation that represents the relationship between hours mowed and total profit (p).

• 15p = h

• ph = 15

• 15h = p

• 15 + h = p

What is the first step in solving the equation?

• Add 4 to each side

• Subtract 4 from each side

• Subtract 2y from each side

• Divide each side by 2y

The model represents the equation 2x - 9 =5. What is the value of x?

• x = 14

• x = 7

• x = 4

• x = -4

Solve      7y - 4 = -11

• 1

• 2

• -1

• -2

Solve  12 - 6y = 24

• -1

• -2

• -3

• -4

Solve   -5t + 9 = 24

• -3

• 3

• 12

Joe earns $25 per yard he mows in the summer.  If he also makes a one time amount of $100 for babysitting his brother, write an equation that can be used to determine the number of yards (y) he will need to mow to go to Italy for $3,100.  

• 25y - 100 = 3,100

• 3,100 - 100 = 25y

• 25y + 100 = 3,100

• 100y + 25 = 3,100

Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Write an equation that represents the number of tickets (t) that can be purchased if Penelope plans to spend $35.

• .50t + 20 = 35

• .50t = 35

• .50 + 20t = 35 

• .50t +35 = 20