
Mark M. answered 01/16/17
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Mathematics Teacher - NCLB Highly Qualified
c represents number of $3 clocks
1200 - c represents the number of $4 clocks
3c + 4(1200 - c) ≤ 39000
Can you solve for c and answer the question?
(I think the question should ask for the "maximum" number of clocks. The minimum, absurdly, is 1.)