Answer:
1- 9n/7
Step-by-step explanation:
I hope i helped! :)
21 divide by 4 is 5.25. She travels 5.25 miles per hour. 42 divide by 5.25 is 8. It would take 8 hours for Shelly to bike 42 miles.
Answer:
y=x-2
Step-by-step explanation:
If you have drawn the graph of
.
To determine the equation of the line which should be drawn to solve the equation: x² - 4x +3=0
Simply carry out the subtraction: 

The equation of the line which should be drawn is: y=x-2
What this means is simply:
If

So basically you have to see how the person is built but in average it will took like 12minutes