Problems With Equations

Mary earns $14 per hour. Which equation represents how many hours she worked to earn $112? 

• 14h = 112

• 14 / h = 112

• h + 14 = 112

• h - 14 = 112

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

Last Friday Trevon had $29. Over the weekend he received some money for cleaning the attic. He now has $41. How much money did he receive?

• 29 - n = 41

• 29 - n = 40

• 29 + n = 41

• 29 + n = 40

How do you know when an equation has been solved and your work is done?

• When you get a whole number

• After you add or subtract

• When x is by itself on one side of the equal sign

• When there are no more variables

Which of the following are EQUATIONS?

• 56k+2=116

• 15+k=36

• 5m+12b-1

• = 4d-5

Equations must have an...........

• ≠

• =

• ≤

• ≥

What is the inverse operation needed to solve for p?
765 = p - 254

• subtraction

• addition

• multiplication

• division