Ask Question
19 June, 19:42

Which system of equations has the same solution as the system below?

4x+5y=13 and 10x-8y = - 32

A:4x+5y=13 and 5x-4y = - 32

B:40x+50y=130 and 5x-4y=16

+4
Answers (1)
  1. 19 June, 22:34
    0
    Neither.

    But possibly B.

    Step-by-step explanation:

    A system of equations has the same solution if it can be reduced to the same equation by simplification.

    For example, x+y=2 and y=1 has the solution x=1

    likewise, 10x+10y=20 and 4y=4 has the solution x=1.

    This is easy to see by dividing the first by 10 and the second equation by 4, leaving you with the original system x+y=2 and y=1.

    For your case, none of the options are correct, but assuming you missed the negative sign on the 16 in system B, then it would be correct.

    B. 40x+50y=130 and 5x-4y=-16

    divide by 10 (equation 1) and multiply by 2 (equation 2):

    B is now: 4x+5y=13 and 10x-8y=-32

    Since B is exactly equivalent to the original system, their solutions must be the same.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Which system of equations has the same solution as the system below? 4x+5y=13 and 10x-8y = - 32 A:4x+5y=13 and 5x-4y = - 32 B:40x+50y=130 ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers