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Q: The ages of two brothers are in the ratio two to three, but in eight years, the ratio of their ages will be three to four. What is the age of the younger brother? 16 18 24
A: The answer is C) 24 let x = age of younger bro ley y = age of older bro x/y = 2/3 - - > x = 2y/3 eq.1 x+8 / y+8 = 3/4 eq.2 sub eq.1 into eq.2: (2y/3) + 8 / y+8 = 3/4 (2y+24)/3 / y+8 = 3/4 2y + 24 / 3(y+8) = 3/4 2y+24 / 3y+24 = 3/4 4(2y+24) = [ 3(3y+24) 8y+96 = 9y+72 24=y x=2y/3=2*24/3=16 ]
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Original conversation
User: Twenty pounds of a salt-water solution contains fifteen percent salt. How much water must be added to weaken the solution to twelve percent salt?

User: Twenty pounds of a salt-water solution contains fifteen percent salt. How much water must be added to weaken the solution to twelve percent salt? 3 lb 5 lb 12 lb

User: Reduce to lowest terms.

User: Find two consecutive odd numbers such that the sum of three-sevenths of the first number and one-third of the second number is equal to thirty-eight.

User: Find two consecutive odd numbers such that the sum of three-sevenths of the first number and one-third of the second number is equal to thirty-eight. 29 and 31 39 and 41 49 and 51

User: The ages of two brothers are in the ratio two to three, but in eight years, the ratio of their ages will be three to four. What is the age of the younger brother? 16 18 24

Weegy: The answer is C) 24 let x = age of younger bro ley y = age of older bro x/y = 2/3 - - > x = 2y/3 eq.1 x+8 / y+8 = 3/4 eq.2 sub eq.1 into eq.2: (2y/3) + 8 / y+8 = 3/4 (2y+24)/3 / y+8 = 3/4 2y + 24 / 3(y+8) = 3/4 2y+24 / 3y+24 = 3/4 4(2y+24) = [ 3(3y+24) 8y+96 = 9y+72 24=y x=2y/3=2*24/3=16 ]
dennis003|Points 358|

User: The formula for the area of a trapezoid with altitude k and bases m and n is . Solve for m.

User: What is the excluded value? 0 1

Weegy: The answer is zero. The property is identity property of addition. This property states that any number plus 0 equals that number. [smile]
Daarizky|Points 20|

User: Solve the inequality. x = -3 x = -3 x = 3 x = 3

Weegy: D.) { x | x > -3 }
btatkerson|Points 1184|

User: Solve the inequality. x = -3 x = -3 x = 3 x = 3

Weegy: D.) { x | x > -3 }
btatkerson|Points 1184|

User: Reduce to lowest terms. -4x3y2 -2x2y2 -x2y2

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Asked 7/17/2012 9:57:50 AM
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