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24 sats \ 1 reply \ @Murch 14 Mar \ on: Money science
2*x + 5*(16-x) = 50
2x + 80 - 5x = 50
30 - 3x = 0
30 = 3x
x = 10
Ergo, 10 * $2 and (16-10 = 6) * $5
We don’t teach our pri school kids to use algebra to solve word problems, but of course, your method is elegant.
I gotta teach my son to use algebra next time!
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