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Challenge: A scuba diver has 30 cubic feet of air in his tank and dives under the water at
3:15pm. When he resurfaced at 3:30pm, he had 12 cubic feet of air left. How many cubic
feet of air per minute did he use?

Respuesta :

adioabiola

The cubic feet of air the scuba diver used per minute is 1.2 cubic feet of air per minute

Unit rate

  • Quantity of air in his tank = 30 cubic feet
  • Time he dives in = 3:15pm
  • Time he resurfaced = 3:30pm
  • Quantity of air remaining in the tank = 12 cubic feet

Cubic feet of air used per minute = Difference in quantity of air in his tank / difference in time

= (30 - 12) / (3:30pm - 3:15pm)

= 18 / 15

= 1.2 cubic feet of air per minute

Therefore, the cubic feet of air the scuba diver used per minute is 1.2 cubic feet of air per minute

Learn more about unit rate:

https://brainly.com/question/4895463

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