12/12 - 1.6 - Solving Proportions.

Hamburger sells for 3 pounds for $6. If Alicia buys 10 pounds of hamburger, how much will she pay?

• $30
• $20
• $60
• $10

12 ounce shampoo bottle lasts Mike 16 weeks.  How long would you expect an 18-ounce bottle of the same brand to last him?

• 24 weeks
• 6 weeks
• 30 weeks
• 20 weeks

The cookie jar has six chocolate chip cookies and five oatmeal cookies. What is the ratio of oatmeal to chocolate chip cookies?

• 6:5
• 5:6
• 6:11
• 6:11

The distance that an automobile travels varies directly as the time it travels. If the car travels 280 miles in 7 hours, how far will it travel in 12 hours?

• 480
• 1960
• 84
• 25

What is the correct way to write the cross multiplication for this proportion

• 15=25x

• 125=5x

• 75=5x

• 5=3x

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Joe's basketball team won 38 games and lost 4 games this season. What is the ratio of games lost to games won?

• 38:4

• 4:38

• 19:2

• 2:19

Kevin is mixing paint to make orange. The ratio of red paint to yellow paint is 3 oz to 5 oz. How much yellow paint should he mix with 9 oz of red paint?

• 15 oz
• 30 oz
• 45 oz
• 11 oz

REVIEW QUESTION
Is this table proportional or non-proportional?

• Proportional
• Non-Proportional
• both
• neither

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Write and solve a proportion for this scenario.

If Shane can bake 120 dozen cookies in five days, how many days would it take to bake 800 dozen cookies?

• about 34 days

• about 30 days

• about 12 days

• about 7 days

Mathematical Equivalence

ON