Discovery 7th Grade Unit Rates and Ratios

Which of the following is NOT true about ratios?

• Ratios compare two or more numbers.
• Ratios can be written as a fraction.
• Ratios can only be positive numbers.
• Ratios can be solved by cross multiplying (butterfly method).

Tags

CCSS.6.RP.A.3A

What is 20% of 38?

• 8.7
• 7.6
• 20
• 14

Tags

CCSS.6.RP.A.3C

Which of the following is NOT an example of a unit rate?

• 20 miles per hour
• 60 feet per minute
• $40.00 every day
• All of these are examples of unit rates.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

How can you find a unit rate?

• Divide one measurement by 2 and then divide the other by 2.
• Divide the total by the number of items.
• Multiply two measurements together.
• Double the numerator and the denominator.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Find the unit rate.
72 miles every 4 hours

• 36 m.p.h.
• 72 m.p.h.
• 288 m.p.h.
• 18 m.p.h.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Find the unit rate in feet per hour.
The turtle walked 6 inches every 12 seconds.

• 30 feet per hour
• 2.5 feet per hour
• 150 feet per hour
• 12 feet per hour

Tags

CCSS.6.RP.A.3B

Find the unit rate in pounds.
Julia uses 3 / 4 pounds of butter for 3 batches of cookies.

• 1/4 pounds
• 2  1/4 pounds
• 3 pounds
• 1/8 pounds

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

If Maria walks at a pace of 3 miles per hour and Jeremiah walks 1/3 miles per hour less than Maria, how many more miles will Maria walk in 24 hours?

• 48 miles
• 72 miles
• 3 miles
• 24 miles

Tags

CCSS.7.EE.B.3

- 32 + (- 21) - (-50)

• -3
• -103
• 103
• 3

Tags

CCSS.7.NS.A.1C

3/5  ÷ 6/7

• 18/35
• 9/12
• 7/10
• 1/4

Tags

CCSS.6.NS.A.1