SOLUTION: Model this situation using a linear system. A server earned $55 in tips, all in loonies and toonies. she had 38 coins altogether. how many toonies were there? so far ; let x rep

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Model this situation using a linear system. A server earned $55 in tips, all in loonies and toonies. she had 38 coins altogether. how many toonies were there? so far ; let x rep      Log On


   

Question 351227: Model this situation using a linear system. A server earned $55 in tips, all in loonies and toonies. she had 38 coins altogether. how many toonies were there?
so far ; let x represent the number of loonies.
let y represent the number of toonies.
x+y=38
x-2y=55
now i need to solve it .
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Model this situation using a linear system. A server earned $55 in tips, all in loonies and toonies. she had 38 coins altogether. how many toonies were there?
so far ; let x represent the number of loonies.
let y represent the number of toonies.
x+y=38
x+2y=55
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Subtract 1st from 2nd to get:
y = 17 (# of toonies)
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x = 38-17 = 21 (# of loonies)
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Cheers,
Stan H.