Question

Need help. Please show your work if possible!!​

Answer 1

Answer:

e

Step-by-step explanation:

let x be the number of one- bedroom and y the number of two - bedroom apartments , then create 2 equations and solve simultaneously.

x + y = 12 ( subtract y from both sides )

x = 12 - y → (1)

360x + 450y = 4950 → (2)

substitute x = 12 - y into (2)

360(12 - y) + 450y = 4950 ← distribute parenthesis and simplify left side

4320 - 360y + 450y = 4950

4320 + 90y = 4950 ( subtract 4320 from both sides )

90y = 630 ( divide both sides by 90 )

y = 7

there are 7 two- bedroom apartments