Question

Medal for first answer
How many solutions are there to the following system of equations?

2x + 5y = –11
10x + 25y = –55

A.
2

B.
1

C.
0

D.
infinitely many

Answer 1

2x + 5y = –11
10x + 25y = –55

do you notice anything similar about these two equations?

Answer 2

What happens if you multiply the first one by 5?

Answer 3

if you multiply the first one by 5 you get the second equation

Answer 4

Exactly. They are the same line...

2 of the same line will intersect each other how many times..?

Answer 5

infinitely , so its D. @dtan5457 thnx

Answer 6

yep, good job.