- #1
Suprin
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Homework Statement
It's a verbal problem. It goes like this:
"Peter needs to buy some screws: large, medium, and small. He goes to the hardware store and orders 100 screws for a total of $100. For each large screw he was charged $5.00, $1.00 for each medium one, and $0.05 for each small one.
The point is to express this in a system of linear equations and then figure out how much of each one did Peter order. I can figure out the last part if I can figure out the first part.
Homework Equations
I can use L for the amount of large screws, M for the amount of medium screws, S for the amount of small screws or just XYZ it (for clarity's sake, I wrote both on my papers but I'll stick to LMS here).
The first equation I wrote down goes like this:
$5.00 L + $1.00 M + $0.05 S = $100
or
5L + M + 1/20 S = 100
The Attempt at a Solution
The equation above is my attempt, although upon further reasoning I think it might be wrong. I was thinking maybe it could be something like:
$5.00 L + $1.00 M + $0.05 S = K, where K can stand for any amount of money spent depending on the total purchase.
In the end, I really need some guidance to figure this out. Hopefully someone can give me a hint or a clue as to what it is that I'm not seeing and if my original equation is correct so far. :p
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