The 3rd option is correct
Solve by Elimination:
6y+5x=8
2.5x+3y=4
Multiply the second equations by 2:
5x+6y=8
we know see that both equations are the same line, this means that there is an infinite amount of solutions to the equation
5/14 is the answer. I'll do my best bud
Answer↑
Steps↓
Convert 2 1/2 to an improper fraction:
2 + 2+ 1 over 2
Once you add the numbers, that will be 5/2.
Now, multiply that with 1/7:
5/2 • 1/7
Your answer will be 5/14
Therefore, Rock A weighs 5/14 pounds