Homework Help: math

Posted by NEED HELP on Wednesday, February 13, 2013 at 8:15pm.

A shipment of tv sets, some weighing 30kg each and the others weighing 50kg each, has a total weight of 880kg. If there are 20 tv sets all together how many weigh 50 kg?

math - bobpursley, Wednesday, February 13, 2013 at 8:29pm
Let L= large, S=small

S+L=20
30S+50L=880kg

does that help?
math - ki, Wednesday, February 13, 2013 at 8:31pm
yes! Thanks

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