SOLUTION: From a point on a straight bicycle tail. Reese and Rachel ride bicycles in opposite directions. Rees's speed is 2 miles per hour slower than Rachel's. If they are 50 miles apart i

Algebra ->  Graphs -> SOLUTION: From a point on a straight bicycle tail. Reese and Rachel ride bicycles in opposite directions. Rees's speed is 2 miles per hour slower than Rachel's. If they are 50 miles apart i      Log On


   

Question 926033: From a point on a straight bicycle tail. Reese and Rachel ride bicycles in opposite directions. Rees's speed is 2 miles per hour slower than Rachel's. If they are 50 miles apart in 2.5 hours, what is the speed of each bicyclist?
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
x = reese speed
y = rachel speed
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x = y - 2
x - y = -2
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their relative speed:
x + y
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s = d/t
x + y = 50/2.5
x + y = 20
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put the system of linear equations into standard form
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x - y = -2
x + y = 20
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = reese speed = 9 mph
y = rachel speed = 11 mph
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