j = 28 - t
9t + 6j = 9t + 6(28-t) = 9t + 168 - 6t = 216
Solve for t.
Cathy makes two different types of candy: truffles and jellybeans. She charges $9
a box for the truffles and $6 a box for the jellybeans. If she decides to make 28
boxes of candy one day, what is the minimum number of boxes of truffles she
should make if she is to gross at least $216? [Only algebraic solutions will receive
credit.]
2 answers
16