A box contains a mixture of copper and aluminum balls the
A box contains a mixture of copper and aluminum balls. The box contains 100 balls that have a total mass of 2.51 kg. If the aluminum balls have a mass of 16 grams and the copper balls have a mass of 30 grams, how many balls of each are in the box?
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i was able to work out the answer to a but i am having trouble with b i keep coming up with something around 3 diopters
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