Lesson 5 Practice Problems

Mai’s water bottle has 24 ounces in it. After she drinks x ounces of water, there are 10 ounces left. Select all the expressions that represent this situation.

• 24 + 10 = x

• 24 + 10 = x

• 24 - 10 = x

• x + 10 = 24

• 10x = 24

Select all the equations that describe each situation and then find the solution. a. Kiran’s backpack weighs 3 1/2 pounds less than Clare’s backpack. Clare’s backpack weighs 14 3/4.

• x + 3 1/2 = 14 3/4

• 7/2 x = 14 3/4

• x = 14 3/4 - 3 1/2

• x = 14 3/4 + 3 1/2

Select all the equations that describe each situation and then find the solution. b. Each notebook contains 60 sheets of paper. Andre has 5 notebooks. How many sheets of paper do Andre’s notebooks contain?

• y = 60 ÷ 5

• y = 5 · 60

• 5y = 60

Priya has 5 pencils, each x inches in length. When she lines up the pencils end to end, they measure 34.5 inches. Select all the equations that represent this situation.

• 5 + x = 34.5

• 5x = 34.5

• 34.5 + 5 = x

• 34.5 - 5 = x

• x = (34.5) · 5

Jada’s community is raising money to build a new park. What percentage of their fundraising goal have they met so far?

• 25%

• 44%

• 75%

• 100%

In a lilac paint mixture, 40% of the mixture is white paint, 20% is blue, and the rest is red. There are 4 cups of blue paint used in a batch of lilac paint. If you get stuck, consider using a tape diagram. How many cups of white paint are used?

• 8 cups

• 10 cups

• 12 cups

• 16 cups

In a lilac paint mixture, 40% of the mixture is white paint, 20% is blue, and the rest is red. There are 4 cups of blue paint used in a batch of lilac paint. If you get stuck, consider using a tape diagram. How many cups of red paint are used?

• 4 cups

• 6 cups

• 8 cups

• 10 cups

In a lilac paint mixture, 40% of the mixture is white paint, 20% is blue, and the rest is red. There are 4 cups of blue paint used in a batch of lilac paint. If you get stuck, consider using a tape diagram. How many cups of lilac paint will this batch yield?

• 10 cups

• 8 cups

• 12 cups

• 20 cups

Which triangle has a greater area? Triangle P has a base of 12 inches and a corresponding height of 8 inches. Triangle Q has a base of 15 inches and a corresponding height of 6.5 inches.

• Triangle P

• Triangle Q

• Both have the same area

• Cannot be determined