Question

Please HELP ME!!! Write an equation and solve it the answer choices are down below thank you!!!

1)20 + 3.5x = 30 + 2.75x; 13 minutes

2)20 + 3.5x = 30 + 2.75x; 8 minutes

3)3.5x + 2.75x = 20 + 30; 13
minutes

4)3.5x + 2.75x = 20 + 30; 8 minutes

Answer 1

I do not understand why you or your teacher have written down a certain number of minutes by each equation, but I will do my best to answer your question. I hope that I’m able to help.

1,2) 20 + 3.5x = 30 + 2.75x
-20 -20
3.5x = 30 + 2.75x - 20
-2.75x -2.75x
0.75x = 10
/0.75 /0.75
x = 13.333...

3,4) 3.5x + 2.75x = 20 + 30
6.25x = 50
/6.25. /6.25
x = 8