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The cost of mailing a DVD in an envelope by express mail is equal to the cost of mailing a DVD in a box by priority mail. What is the weight of the DVD with its packing material? Round your answer to the nearest hundredth. Packing Material Priority Mail Express Mail Box= $2.25 $2.50 per lb $8.50 per lb Envelope= $1.10 2.50 per lb $8.50 per lb
eight of the DVD with packing material is 0.19 lb. 1.10+8.5x=2.25+2.5x Move variables to one side. The easier one would be to move 2.5x. So you subtract 2.5x to both sides. 1.10+6x=2.25 Do the same for the values without the x. The easier one would be to subtract 1.10 from both sides. 6x=1.15 Then divide by 6 1.15/6=0.19
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