SOLUTION: Two factory plants are making TV panels. Yesterday, Plant A produced 3 times as many panels as Plant B. Five percent of the panels from Plant A and 3% of the panels from Plant B

Algebra ->  Linear-equations -> SOLUTION: Two factory plants are making TV panels. Yesterday, Plant A produced 3 times as many panels as Plant B. Five percent of the panels from Plant A and 3% of the panels from Plant B      Log On


   



Question 1045768: Two factory plants are making TV panels. Yesterday, Plant A produced 3
times as many panels as Plant B. Five percent of the panels from Plant A and
3% of the panels from Plant B were defective. How many panels did Plant B produce, if the two plants together produced 2160 defective panels?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +b+ = number of panels from plant B
+3b+ = number of panels from plant A
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+.05%2A3b+%2B+.03b+=+2160+
+.15b+%2B+.03b+=+2160+
+.18b+=+2160+
+b+=+12000+
plant B produced 12,000 panels
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check:
+3b+=+3%2A12000+
+3b+=+36000+
+.05%2A36000+%2B+.03%2A12000+=+2160+
+1800+%2B+360+=+2160+
+2160+=+2160+
OK