## A beaker contains $$100$$ milligrams of a solution of salt and water that is $$x\%$$ salt by weight such that $$x<90.$$

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### A beaker contains $$100$$ milligrams of a solution of salt and water that is $$x\%$$ salt by weight such that $$x<90.$$

by VJesus12 » Sat Oct 16, 2021 4:03 am

00:00

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B

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E

## Global Stats

A beaker contains $$100$$ milligrams of a solution of salt and water that is $$x\%$$ salt by weight such that $$x<90.$$ If the water evaporates at a rate of $$y$$ milligrams per hour, how many hours will it take for the concentration of salt to reach $$(x+10)\%,$$ in terms of $$x$$ and $$y?$$

(A) $$x^xy^y=\dfrac{24^3}2$$

(B) $$\dfrac{1000+99x}{xy+10y}$$

(C) $$\dfrac{100y+100xy}{x+10}$$

(D) $$\dfrac{1000}{xy+10y}$$

(E) $$\dfrac{\sqrt{x+y}}2$$