Question

The Waltons, a family of 12, are being given a $330 government tax deduction. They are given $30 for each female and $20 for each male. Build a system of equations that can be used to find the number of females and males in the Walton family.

Answer 1

Let the number of females be f.
Let the number of males be m.
Then the tax = 330 = 30f+20m
Also f+m = 12. Thus m = 12-f
Substituting in above:
\[330=30f+20(12-f)\]
\[330=10f+240\]
\[90=10f\]
\[f=9\] and \[m=10\]

Answer 2

Oh, my bad. m = 3

Answer 3

there are only 12 in the family. Your answer shows 19, the answer is 3 males @ $60 and 9 females @ 270. This equals $330.

Answer 4

Yes, my bad. See above comment