Direct and inverse proportion

What type of proportion does the table represent?

• Direct

• Inverse

• I dont' know

Tags

CCSS.7.RP.A.2B

What type of proportion does the table represent?

• Direct

• Inverse

• I dont' know

Tags

CCSS.7.RP.A.2D

What type of variation does this scenario represent?
The length of time you charge your cell phone
and the battery power 

• direct variation
• inverse variation
• joint variation
• none of these

Tags

CCSS.7.RP.A.2

What type of variation does this scenario represent?
The outside temperature
and the number of layers of clothes you need to wear outside to feel comfortable 

• direct variation
• inverse variation
• joint variation
• none of these

2.The amount of money spent at the gas station varies directly with the number of gallons purchased. When 9.5 gallons of gas were purchased the cost was $36.52. How much would 12 gallons of gas cost?

• Direct Variation

• Inverse Variation

Tags

CCSS.7.RP.A.2D

1.The number of pencils sold varies directly as the cost. If 5 pencils cost $0.45, find the cost of 7 pencils.

• Direct Variation

• Inverse Variation

3.The time needed to travel a certain distance varies inversely with the rate of speed. If it takes 6 hours to travel a certain distance at 40 miles per hour, how long will it take to travel the same distance at 55 miles per hour?

• Direct Variation

• Inverse Variation

Tags

CCSS.7.RP.A.2D

4.The number of centimeters y in a linear measurement varies directly with the number of inches x in the measurement. Pablo's height is 167.64 centimeters or 66 inches. What is Maria's height in centimeters if she is 63 inches tall?

• Direct Variation

• Inverse Variation

Tags

CCSS.7.RP.A.2D

5.Kendra earns $32.50 for working 7 hours. If the amount m she earns varies with h the number of hours she works, how much will she earn for working 12 hours?

• Direct Variation

• Inverse Variation

6.The time it takes to travel a fixed distance varies inversely with the speed traveled. If it takes Pancho 52 minutes to bike to his fishing spot at 9.5 miles per hour, how long will it take him if he rides at 11 miles per hour?

• Direct Variation

• Inverse Variation

Tags

CCSS.7.RP.A.2D