10/11/15

How many liters of a 10% alcohol solution must be mixed with 90 liters of 70% solution to get a 60% solution?
How many liters of a 10% alcohol solution must be mixed with 90 liters of 70% solution to get a 60% solution?
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10/08/15

word problem
Allison has 5 times as many baseball cards as football cards. In all she has 120 baseball and football cards. How many baseball cards does Allison have?
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10/07/15

A soccer team played 160 games and won 65 percent of them. How many games did they win?
A soccer team played 160 games and won 65 percent of them. How many games did they win?
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10/06/15

5ft retangular swimming pool 900=w(w+60)=???
a 5-foot-wide sidewalk around a rectangular swimming pool has a total area of 900 square feet. Find the dimensions of the swimming pool if the pool is 60 feet longer than it is wide.
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10/06/15

Simplify 1/v2-1+ 1/v2-1 as much as possible
I need help on this ASAP
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10/06/15

Specify what ions are present upon dissolving each of the following substances in water.
K2CO3 Specify what ions are present upon dissolving each of the following substances in water. Express your answers as ions separated by a comma.
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