Speed = distance/time Which in your case means 50 meters/ 21.34 seconds, which equals 2.343 meters per second.
40/50 is equal to 80 percent, a calculator can provide this result
We move all terms to the left:
+31x+32)-((+5)=0
So your answer is 0
OK, so she definitely drove home faster than when she drove to her first destination. So she must've taken quicker to get home. Lets assume 3 hours on the way there and 2 hours on the way back.
I really hoped this helped. I'm no genius, but you asked for help and I tried to give it.
Have a great day.
