the linear combination method is applied to a system of equations:

(4x + 10y = 12)one-half
(10x + 25y = 30) – one-fifth
2x + 5y = 6
–2x – 5y = –6
0 = 0

what does 0 = 0 indicate about the solutions of the system?

Infinitely many solutions

Step-by-step explanation:

We are given that

...(1)

....(2)

We have to find that 0=0 what indicates about the solution of the system

Equation (1) divided by 2 and equation (2) divided by-5 then we get

.....(3)

...(4)

Adding equation  (3) and (4) then we get

We know that

When we get these type of condition in which 0=0

Then , the solution of the system are infinite.

Hence, 0=0 indicates that solution of the system are infinite.

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.