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John has dimes and quarters worth $4.50. He has four more quarters than dimes. How many coins of each type does he have?
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Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882
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John has dimes and quarters worth $4.50. He has four more quarters than dimes. How many coins of
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