katiebugg
solve for D
Q+D=28
.25Q+.1D=5.2



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thushananth01
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Q = 28 Dlet it be equation (1)
substitute equation(1) in
25Q + 1D = 5.2
25(28D) +D = 5.2
i think u can solve for D nw?

katiebugg
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lol k thanks!!

thushananth01
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no probs :)