Question 344870
p+c=500 c=500-p
3.25p+4.50c=2090
3.25p+4.50(500-p)=2090
3.25p+2250-4.50p=2090
-1.25p=-160
p=128 plastic cups
c=500-128=372 ceramic cups
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P=128*3.25=$416
c=372*4.50=$1674