A town is doing an inspection on five different buildings to see if they exceed the maximum height of 90 feet. The five buildings share something similar: they have a number of offices and residential floors, which are each 13 and 11 feet tall, respectively. After the inspection, two buildings are found to be taller than the limit. Which buildings exceed the maximum height? Select the two correct answers 1. Building A: 7 office floors
2. Building B: 4 office floors and 3 residential floors
3. Building C: 3 office floors and 5 residential floors
4. Building D: 1 office floor and 7 residential floors
5. Building E: 5 office floors and 2 residential floors

a

step-by-step explanation:

add them

step-by-step explanation:

idk you did not give the options or numbers so you cant solve it

a

step-by-step explanation:

given the 2 equations

- x + y = - 2 → (1)

2x - 3y = 4 → (2)

multiplying (1) by 2 and adding to (2) will eliminate the x- term

- 2x + 2y = - 4 → (3)

add (2) and (3) term by term

(2x - 2x) + (- 3y + 2y) = (4 - 4), simplifying gives

- y = 0 ⇒ y = 0

substitute y = 0 in either of the 2 equations for corresponding value of x

substituting in (2) gives

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 0 ) → a

answer:

the answer is b) divide by -4 on each side and flip the sign.

step-by-step explanation:

we first need to start by dividing. this is because it is a multiplication problem to start.

we also need to make sure we flip the sign because any time you multiply or divide by negative numbers, the sign must be flipped.