Question
Miamitown Mulch is a small landscaping company whose primary retail sales are in three types of mulch. They sell Black Hardwood, Red Cedar, and Pine
Miamitown Mulch is a small landscaping company whose primary retail sales are in three types
of mulch. They sell Black Hardwood, Red Cedar, and Pine Bark mulch, typically in bulk to
landscaping contractors. April, May, and June are their three biggest sales months of the year,
and they need to plan for the correct amount of mulch to have on hand each month. The
supplier, they get their mulch from requires firm contracts by March 1
st
, and Miamitown needs
to know how much to order for the coming months. Their estimates of demand, in tons, are as
follows:
BlackRedPine
MonthHardwoodCedarBark
April400300250
May 700400300
June 375325175
The supplier can sell Miamitown up to 500 tons of Black Hardwood each month at $20 per ton.
They can provide an additional 300 tons each month at $26 per ton. The supplier will provide as
much as 350 tons of Red Cedar each month for $15 per ton, and as much as 150 more tons each
month at $18 per ton. There is much greater availability of Pine Bark Mulch, so the supplier can
provide Miamitown with up to 1000 tons per month, at a cost of $10 per ton.
Miamitown can hold a limited amount of inventory of mulch from one month to the next. The
total amount that can be held, for all three types of mulch combined, cannot exceed 400 tons.
They estimate that it will cost them 3% of the base price for each mulch, per ton, to hold mulch
from one month to the next.
Formulate a linear program that will help Miamitown to schedule delivery of mulch necessary to
meet anticipated demand, at the minimum cost possible.
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