2 years ago

Help please. Geometry.

Mathematics

2 answers:

Luda [366]2 years ago

7 0

Answer:

Trapezoid i think

ArbitrLikvidat [17]2 years ago

4 0

Trapezoid is probably the answer

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how many ounces of pure water must be added to 50 ounces of a 15% saline solution to make a saline solution that is 10% salt

anygoal [31]

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Let x be the amount of pure water you add to this solution. Then you end up with (x + 50) ounces of this new solution. The amount of salt stays the same.

You want the new solution to have a concentration of 10%. This means you need

7.5 / (x + 50) = 0.1

==> 7.5 = 0.1(x + 50)

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