the ratio of weights if tin and zinc in an alloy is 3:5 how much zinc is there in 31.5g of alloy ?
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let the weight of tin be 3x
and
the weight of zinc be 5x
their alloy is 31.5 g
so
3x+5x=31.5g
8x=31 .5g
X=31.5÷8
X=3.9375
weight of zinc=5x=5(3.9375)=19.6875 g
and
the weight of zinc be 5x
their alloy is 31.5 g
so
3x+5x=31.5g
8x=31 .5g
X=31.5÷8
X=3.9375
weight of zinc=5x=5(3.9375)=19.6875 g
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