SOLUTION: I need to see the step by step solution to solving this and i need this to be solved by graphing so if a graph could be made and shown to me I'd love it!
Eric can ride 162 miles
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-> SOLUTION: I need to see the step by step solution to solving this and i need this to be solved by graphing so if a graph could be made and shown to me I'd love it!
Eric can ride 162 miles
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Question 838436: I need to see the step by step solution to solving this and i need this to be solved by graphing so if a graph could be made and shown to me I'd love it!
Eric can ride 162 miles on flat ground in 6 hours with a good breeze at his back. It takes him 10 hours to go 90 miles with the same breeze working against him. How fast is Eric going on a bike and how fast is the wind speed?
please tell me how to setup the graph and solve from the graph
THANKS
You can put this solution on YOUR website! Let = Eric's speed on a bike with no wind in mi/hr
Let = the speed of the wind in mi/hr
------------------------------------
Equation riding with the wind:
(1)
Equation riding against the wind:
(2)
-----------------------
(1)
(1)
(1)
and
(2)
(2)
--------------------
Add the equations:
(2)
(1)
and
(2)
(2)
(2)
-------------------
Riding with the wind, Eric is going mi/hr
Riding against the wind, Eric is going mi/hr
The wind speed is mi/hr
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Here's a plot of (1) and (2): is on the horizontal axis is on the vertical axis
check answers:
(1)
(1)
(1)
(1)
-------------------------
(2)
(2)
(2)
(2)
OK
