Answer:
20 miles in an hour.
Step-by-step explanation:
4/5=0.8
16/0.8=x/1
cross product
0.8*x=16*1
0.8x=16
x=16/0.8
x=20
The number is 5. 27-12=15/3=5 is how you get the answer.
I think it would be it has no solutions, because if you solve for z, the z's cancel each out and you would get 0=2 with is not true, so there would not be any solutions.
4.5z=4.5z-4.25+6.25
4.5z-4.5z=-4.25+6.25
0=2
no solution
