Question

Mr. Nelson drove for 6 2/3 hours at an average of 57 mph. How far did he drive?

Answer 1

`6(2)/(3)=(6\cdot3+2)/(3)=(20)/(3)\\\\v=(s)/(t)\\\\v=57mph;\ t=(20)/(3)h;\ s=?`

substitute


`(s)/((20)/(3))=57\ \ \ |\cdot(20)/(3)\\\\s=57\cdot(20)/(3)\\\\s=19\cdot20\\\\s=380\ miles`

Answer: 380miles.