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Lizzy pretty
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Lizzy pretty
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Find the formula connecting D and V
D=av+b solving for a and b when V=40,D=150 and when V=54,D=192 150=40 a+b _(1) 192=549+b_(2) subtract (2)from(1)42=149 Divide both sides by 14 9=3substitute 9=3 into (1) 150=40*3+B150=120+B B=30
