Week 8 Foundations

The variable, k, is being divided by 11. How should you show your work to isolate the variable?

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.

What equation matches this situation?

Robyn had some video games then bought 4 more. Now she has a total of 10 games.

• v - 4 = 10

• v + 4 = 10

• 10 - 4 = v

• Answer not Given

What is the inverse operation needed to solve for p?

765 = p - 254

• subtraction

• addition

• multiplication

• division

Choose the correct equation for the situation.

Jane is 3 years older than Sam. If Jane 12, how old is Sam?

• j - 3 = 12

• s - 3 = 12

• s + 3 = 12

• j + 12 = 3

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

Joey and four of his friends went out to eat. They decided to split the bill evenly. Each person paid $11.13. What was the total bill? Write an equation you could use to solve this equation. Use d as your variable.

• d/4=$11.13

• 4d=$11.13

• d/5=$11.13

• 5d=$11.13

Amy was given an amount of money, m, for a good grades on her report card. She spent $15.00 and now has $25.32. How much money did she get for good grades? Write an equation you could use to solve this problem. Use m as your variable.

• m-25.32=15

• m/25.32

• m-15=25.32

• 15m=25.32

Working together, Joy and Steve collected 53 pounds of aluminum cans for recycling. If Joy collected 20 pounds, find the number of pounds, x, that Steve collected. Using x as your variable write an equation to solve.

• 20x=53

• x-20=53

• x-53=20

• x+20=53

y + 2.93 = 36

• y = 38.93

• y = 34.93

• y = 6.7

• y = 33.07

Solve for X

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