Answer:2.26 hours
Explanation:
Given
Rich is driving from Philadelphia to Pittsburgh at 70 mph
and Michelle speed is 65 mph
If Philadelphia and Pittsburgh is 305 miles apart
Let Rich travels x miles in t time
therefore
Michelle travels 305 -x
![(x)/(70)=(305-x)/(65)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/4y212oue6lgoifjiu60qmtd5t0zod8ooz3.png)
![13x=14* 305 -14x](https://img.qammunity.org/2019/formulas/mathematics/middle-school/98p0jvrjkn767immat2byvcbs636w4sgb8.png)
27x=4270
![x=(4270)/(27)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/sgz77aecdsi6y2vz1hoge58ryn8ud4yf2q.png)
![x=158.148\approx 158.15 miles](https://img.qammunity.org/2019/formulas/mathematics/middle-school/sg8q2uqcyakk78x0mwbflt4v5fqufy11x3.png)
time taken t
2.26 hours