:
30 students return to the classroom after playing outside at recess. Over the course of the next hour, each person produces 800 BTUs (British Thermal Units)of heat. The room is 20 feet by 20 feet by 12 feet. How many BTUs per cubic foot were produced?

5 BTUs/ft^3

Step-by-step explanation:

800 BTUs * 30 students = 24000 total BTUs combined

Volume of room = 20 feet * 20 feet * 12 feet = 4800 cubic feet

BTUs/ft^3 = 24000 BTUs / 4800 cubic feet = 5 BTUs/ft^3

So the amount of BTUs per cubic foot that were produced was 5 BTUs/ft^3

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

the probability that a bird is green (.30) is true

step-by-step explanation: