The formula b=29a is used to estimate the minimum furnance output B in btus for a modern house with the amount of square feet of flooring A

1. determine the minimum furnance output for a 2300 ft2 modern house

2. solve the formula A

1. B = 29 * 2300 = 66,700 BTUs.

2. B = 29A,
A = B/29.

To determine the minimum furnace output for a 2300 ft² modern house, we can use the given formula: b = 29a. Here, "a" represents the square footage of the flooring, and "b" represents the minimum furnace output in BTUs.

1. To find the minimum furnace output for the 2300 ft² modern house, substitute the value of "a" into the formula:

b = 29 * a
b = 29 * 2300

Now, we can calculate the minimum furnace output by multiplying 29 by 2300:

b = 66700 BTUs

Therefore, the minimum furnace output for a 2300 ft² modern house is 66700 BTUs.

2. To solve the formula A, we need to rearrange the equation to isolate "a":

b = 29a

Divide both sides of the equation by 29:

b / 29 = a

Now, the formula is solved for "a," where "b" represents the minimum furnace output and "a" represents the square footage of the flooring.