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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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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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Find the midpoint of the line segment whose endpoints are (-2, 5) and (4, -9).
Weegy: Whole Numbers are simply the numbers 0, 2, 4, 6. Integers are like whole numbers, but they also include negative numbers -8, -6, -4, -2, 0, 2, 4, 6 [ ] User: (-2, 5) and (4, -9). User: A ball is dropped from a treetop 256 feet above the ground. How long does it take to hit the ground? (s = 16t2) Weegy: 16 seconds User: Which of the following points is in the solution set of y Weegy: x+3)(x-3) = x2+3x-3x -9 = x2-9 User: y Weegy: x+3)(x-3) = x2+3x-3x -9 = x2-9 User: What is the solution set of 6x2 - 24 = 0? User: A circle has a diameter with endpoints of (-2, 8) and (6, 4). What is the center of the circle? Weegy: Diameter=10.198 center=(2,6) User: What is the solution set of 2x2 + x = 15? Weegy: x = -3 and x = 5/2 are the solutions for 2x^2 + x = 15 User: Which of the following equations is of a parabola with a vertex at (1, 2)? Weegy: The vertex of a parabola is the point where the parabola crosses its axis. If the coefficient of the x2 term is positive, the vertex will be the lowest point on the graph, the point at the bottom of the ?U?-shape. [ If the coefficient of the x2 term is negative, the vertex will be the highest point on the graph, the point at the top of the ?U?-shape. The standard equation of a parabola is y = ax2 + bx + c. But the equation for a parabola can also be written in "vertex form": y = a(x ? h)2 + k ] User: Write the quadratic equation in general form and then choose the value of "b." Weegy: Here is a website which give you some examples User: 2x - 1)(x + 5) = 0 Weegy: x= 3/2 User: Which of the following points lies on the circle whose center is at the origin and whose radius is 10? User: Which of the following constants can be added to x2 - x to form a perfect square trinomial? Weegy: can you please give the choices for constants for this question? User: Which of the following sets could be the sides of a right triangle? User: Which of the following statements ... (More)
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Expert Answered
Updated 7/12/2014 11:01:58 AM
4 Answers/Comments
The midpoint of the line segment whose endpoints are (-2, 5) and (4, -9) is (1, -2)
Added 7/12/2014 10:58:21 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by yumdrea [7/12/2014 11:00:09 AM]
6x^2 - 24 = 0
6x^2 = 24
x^2 = 24/6 = 4
x = 2 or -2
Added 7/12/2014 10:59:09 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by yumdrea [7/12/2014 11:00:10 AM]
(2x - 1)(x + 5) = 0
2x^2 + 10x - x - 5 = 0
2x^2 + 9x - 5 = 0 which is the general form of the equation.
The value of "b" is 9.
Added 7/12/2014 11:00:53 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by yumdrea [7/12/2014 11:01:40 AM]
The constant 1/4 can be added to x^2 - x to form a perfect square trinomial.
x^2 - x + 1/4 = (x - 1/2)^2
Added 7/12/2014 11:01:58 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by yumdrea [7/12/2014 11:06:17 AM]
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