The formula B=30a is used in New England to estimate the minimum furnace output, B, in BTU's for a modern house with the amount of square feet of flooring, a

a. determine the minimum furnace output for a 2000 ft2 modern house
b. solve the formula for a
What is the minimum furnace output ___BTU's
a=

B(2000) = 30(2000)

a = B/30

To determine the minimum furnace output for a 2000 ft2 modern house, you can substitute the value of "a" into the formula B = 30a.

a) Substitute the value of "a" as 2000 into the formula:
B = 30 * 2000

Now, you can calculate the minimum furnace output by multiplying 30 and 2000:

B = 60,000 BTU's

Therefore, the minimum furnace output for a 2000 ft2 modern house would be 60,000 BTU's.

b) To solve the formula B = 30a for "a", we need to isolate "a" on one side of the equation.

B = 30a

Divide both sides of the equation by 30:

B/30 = a

The formula, when solved for "a", becomes:

a = B/30

Therefore, the value of "a" in terms of B is a = B/30.