The estimator for a heating, ventilation, and air conditioning (hvac) contractor estimated that the new hospital would require 5,840 feet of sheet metal ductwork. the order is too large for a single fabricator, so it was decided to split the order among four fabricators. fabricator 1 received an order for 2,500 feet; fabricator 2 obtained an order for 1,200 feet; and fabricator 3 was awarded a contract for 1,150 feet. how many feet of ductwork would be required of fabricator 4?

990 feet

Step-by-step explanation:

Fabricator 4 recieved what's left after the rest were distributed

= 5,840 - 2,500 - 1,200 - 1,150 = 990

Step-by-step explanation:

A: x = 12-4 = 8

B: x =  12/4 = 3

No wonder you asked for help. Some of the questions don't make sense!

x+3 = 9 ⇒ x=6, which doesn't match either A or B.

3·x = 9 ⇒ x=3, which matches B

9 = 3·x is the same as the previous equation, i.e., B.

3+x = 9, doesn't match either A or B.

x = 9-3, doesn't match either A or B

x = 9÷3 ⇒ x=3, which matches B

x+x+x = 9 ⇒ x=3, which matches B

I'm guessing that there is an error in tape A, and x should be 6, not 8.