Answer: 2
Step-by-step explanation:
So, you need to put (4,7) (2,3) into m=y2-y1/x2-x1 form.
4= x1 7=y1 2=x2 3=y2
3-7= -4
2-4= -2
-4/-2=2
If Nate paints the wall in 4 hours, it means that he can paint 1/4 of the wall every hour.
Similarly, if Jill paints the wall in 7 hours, it means that he can paint 1/7 of the wall in one hour.
So, together, they paint the following fraction of the wall in one hour:
.
At this rate, they need 28/11 hours to paint the whole wall, in fact, after that amount of time they paint
i.e. the whole wall
I believe it would be this:
3 (2×-5)=1+4× 6-15=1+4× 6×=1+4×+15
I hope this answer helped, and my deepest apologies if I have calculated wrongly. Math is tricky! :)