<PRE><B>Question 1070711</B>
David owns a restaurant and wants to order 2000 dinner sets. One design cost
$20 per set and the other costs $15 per set. He has $3 , 200 with which he can
buy the sets. How many sets of each type should he buy?
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t = $20 design
f = $15 design
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t + f = 2000
20t + 15f = 3200
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etc


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