Answer:
infinitely many solutions
Step-by-step explanation:
I assume that you meant
3x = -12y + 15 and x + 4y =5 (you accidentally omitted the 'y')
Multiplying the second equation by 3 yields
3x + 12y = 15
... which is identical to the first equation. Thus, the two lines coincide, and we conclude that there are infinitely many solutions.
The Perimeter of Triangle ABC would be 60.
You can solve this by setting up proportions.
N = 5
These are similar triangles so their sides are proportional. The scale factor is the smaller triangle to the large triangle is
5/12.5 = 4/10 = 2/5
So if AB corresponds to QR (2 corresponds to n) then n = 5
Answer: A
Step-by-step explanation: Because 4 quarts equal a gallon and 4+4 equals 8