Rate of change word problems

A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change? 

• 75 ft/h
• .013 ft/h
• 116.7 ft/h
• 200ft/h

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

 A scuba diver is 30 feet below the surface of the water 10 seconds after he entered the water and 100 feet below the surface after 40 seconds. What is the scuba divers rate of change? 

• 2.3 ft/s
• .45 ft/s
• 2.5 ft/s
• 3 ft/s

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

A rocket is 1 mile above the earth in 30 seconds and 5 miles above the earth in 2.5 minutes. What is the rockets rate of change in miles per second? 

• .03 mi/s
• 30 mi/s
• 2 mi/s
• 30 mi/s

A Chef weighed 145 lbs in 1986 and weighs 190 lbs in 2007. What was the rate of change in weight? 

• 45 lb/y
• 11 lb/y
• 4.1 lb/y
• .24 lb/y

Michael started a savings account with $300. After 4 weeks, he had $350 dollars, and after 9 weeks, he had $400. What is the rate of change of money in his savings account per week? 

• 12.5 dollars per week
• 50 dollars per week
• 44.4 dollars per week
• .875 dollars per week

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

After 30 baseball games, A-Rod had 25 hits. If after 100 games he had 80 hits, what is his average hits per baseball game. 

• 1.27 hits per game
• .78 hits per game
• 1.25 hits per game
• .83 hits per game

Tags

CCSS.6.RP.A.3B

A car travels 60 miles in an 2 hours, what is its speed?

• 60 mph
• 30 mph
• .016 mph
• 15 mph

Tags

CCSS.HSF-LE.A.1B

Frank worked fro 8:00 am until 5:00 pm and made $80. What was his hourly rate?

• $8.89 per hour
• $16 per hour
• $10 per hour
• $11.25 an hour

Tags

CCSS.HSF-LE.A.1B