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kristin
 4 years ago
the ages of two brothers are in the ratio two to three,but in eight years the ratio of ther ages will be three to four .findtheir presentage
kristin
 4 years ago
the ages of two brothers are in the ratio two to three,but in eight years the ratio of ther ages will be three to four .findtheir presentage

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julie
 4 years ago
Best ResponseYou've already chosen the best response.0hmmmm, so you want to turn this into a series of equations based on the rules outlined in the word problem. and then solve them.

julie
 4 years ago
Best ResponseYou've already chosen the best response.0so how can you write one of the equations given the first piece of information?

julie
 4 years ago
Best ResponseYou've already chosen the best response.0where y = younger, and x = older

julie
 4 years ago
Best ResponseYou've already chosen the best response.0but since there are two variables in this problem, you need a second equation to solve

julie
 4 years ago
Best ResponseYou've already chosen the best response.0(the two present ages are the two variables)

julie
 4 years ago
Best ResponseYou've already chosen the best response.0so we know in 8 years, that the ratio will actually be 3/4, not 2/3

julie
 4 years ago
Best ResponseYou've already chosen the best response.0now that you have two unknown variables (the present ages), and two equations, you can solve the problem by substituting the first (y=2x/3) into the second.
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