including the bus driver, there are 20 people...
including the bus driver, there are 20 people on a bus. during a one - hour ride, each person produces 740 btus (british thermal units). the interior of the bus measures 38 feet by 8.25 feet by 7.5 feet. how many btus per cubic foot are produced? enter your answer, rounded to the nearest hundredth, in the box. btus per cubic foot
Answer
# Explanation:
## Step1: Calculate total BTUs
There are 20 people and each produces 740 BTUs. So total BTUs = 20×740 = 14800 BTUs.
## Step2: Calculate volume of bus
Volume of a rectangular - prism (bus interior) is V = l×w×h, where l = 38 feet, w = 8.25 feet, h = 7.5 feet. So V=38×8.25×7.5 = 38×61.875 = 2351.25 cubic - feet.
## Step3: Calculate BTUs per cubic foot
BTUs per cubic foot = $\frac{\text{Total BTUs}}{\text{Volume}}=\frac{14800}{2351.25}\approx6.29$
# Answer:
6.29