Proportional Reasoning Challenge

To set up a percent proportion you can use the formula:

part = per

___ ___

Whole 100

• True
• False

The percent of change formula is

new - old

__________ * 100

old

• True
• False

Tags

CCSS.6.RP.A.3C

The Simple Interest Formula is

Interest= Principal * Rate * Time

• True
• False

Tags

CCSS.7.RP.A.3

The Constant of Proportionality Formula is

y = kx

• True
• False

Tags

CCSS.7.RP.A.2B

A Unit Rate has a denominator of 10.

• True
• False

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Match the following

• 35

• 16/25 = ?/100

• 80

• 3/8 = ?/100

• 64

• 7/20 = ?/100

• 37.5

• 4/5 = ?/100

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

A store is offering a 25% discount on a jacket that costs $60. What is the sale price of the jacket?

• $45

• $40

• $50

• $55

Tags

CCSS.6.RP.A.3C

If the ratio of boys to girls in a class is 5:7 and there are 35 boys, how many girls are there?

• 42

• 49

• 28

• 21

A car travels 180 miles in 3 hours. What is the unit rate in miles per hour?

• 60 miles/hour

• 90 miles/hour

• 30 miles/hour

• 45 miles/hour

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A shirt originally costs $32. If it is marked down by 15%, what is the new price?

• $27.20

• $28.80

• $30.40

• $25.60

Tags

CCSS.6.RP.A.3C