Rates and Ratios

What is the ratio of apples to oranges?

• 4 to 6

• 4:6

• all of these

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

• yes

• no

• I don't know

Tags

CCSS.6.RP.A.3A

Tags

CCSS.6.RP.A.3A

A swimmer is moving at a constant speed of 50 yards in 6 seconds. A runner is moving at a constant speed of 44 yards in 5 seconds. Are they traveling at the same speed?

• yes

• no

• Not enough information to decided

Answer explanation

Set the two ratios as fractions

50/6 and 44/5.

Use cross-multiplication to determine if they are equal.

50 x 5 = 250

44 x 6= 264

Not equivalent

Tags

CCSS.6.RP.A.3A

A bag has 35 pennies in it. It also has some dimes. If the ratio of pennies to dimes is 5 to 2. How many dimes are in the bag?

• 16

• 18

• 14

• Cannot be determined

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Complete the table:

• 10, 40

• 10, 35

• 10, 45

• 45, 10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

What is the unit rate: 540 miles in 9 hours?

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the better buy:

5 pounds of bird seed for $42.10

or

7 pounds of bird seed for $60.20

• 5 pounds for $42.10

• 7 pounds for $60.20

• They are both the same

• neither is better

Answer explanation

$42.10/5 pounds = $8.42/1 pound

$60.20/7 pounds = $8.60/1 pound

Tags

CCSS.6.RP.A.3B

What is the GCF of 12 and 32?

• 12

• 10

• 8

• 4

Tags

CCSS.6.NS.B.4

What is the LCM of 15 and 20?

• 5

• 60

• 30

• 35

Tags

CCSS.6.NS.B.4