8.7 Representing Real World Situations

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

Tags

CCSS.HSA.CED.A.3

5 less than a number is 15.

• x - 5 = 15
• 5 - x = 15
• 15 - x = 5

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CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Two more than 4 times a number is -18.

• 4x + 2 = -18
• 2x + 4 = -18
• 18 = 4x +2

Tags

CCSS.HSA.CED.A.3

• 38 = 90 - x

• 38x = 90

• 38 + x = 90

• 38 = x + 90

In 2010, a tree was 8 feet tall. In 2011 the tree was 14 feet tall. Which equation would be used to find how many feet the tree grew?

• f + 8 = 14

• f - 8 = 14

• f/8 = 14

• 8f=14

Tags

CCSS.HSA.CED.A.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

Tags

CCSS.HSA.CED.A.3

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

Tags

CCSS.HSA.CED.A.3

Due to climate change, Ms. Barnett tries to reduce the amount of meat she eats. If she eats buys 24 ounces of meat and plans to each just 2 ounces each week, how many weeks, w, will this meat last? Select the equation that represents this situation.

• 24 + 2 = w

• 24 = 2 + w

• 24 = 2w

• 24 = 2/w

Patrick Henry organized a field trip. It uses 4 buses for each trip. If there are 88 kids going, how many will be on each bus? Select the algebraic equation that matches this situation.

• 4 + 88 = x

• 4 + x = 88

• 88 = 4x

• 88x = 4

Due to climate change, Ms. Norberg and Ms. Barnett recycle grocery bags. Ms. Norberg has x bags. If she gives 10 to Ms. Barnett, she has 24 left. Which equation represents this situation?

• 10 + x = 24

• x = 24 = 10

• 24 + x = -10

• x - 10 = 24