Let x = age of the oldest, y = age of middle and z = age of youngest, then
x + y + z = 32
x = 2z
x - y = 3 (so y = x-3)
Replace x with 2z and y with x - 3
2z + x - 3 + z = 32
Now replace x with 2z
2z + 2z - 3 + z = 32
Combine like terms and solve for z.
4z - 3 + z = 32
5z = 35
z = 7
x = 2(7) = 14
y = 14 - 3 = 11
Answer: 14, 11 and 7
2006-08-26 10:33:45
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answer #1
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answered by MsMath 7
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14, 11 and 7
2006-08-26 10:35:40
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answer #2
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answered by Pyramider 3
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Youngest= 7
Next Oldest=11
Oldest=14
2006-08-26 10:39:50
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answer #3
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answered by =/ 2
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let the children be called a, b, and c
a + b + c = 32
2a = c
c - b = 3
2(a + b + c) = 64
c + 2b + 2c = 64
3c + 2b = 64
3(3+b) + 2b = 64
9+5b = 64
11 = b
c - 11 = 3
c = 14
2a = 14
a =7
therefore the age of the children are 7, 11, and 14
2006-08-26 10:36:48
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answer #4
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answered by Paul W 2
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x + y + z = 32
x = 2z
x - y = 3
2z - y = 3
-y = -2z + 3
y = 2z - 3
2z + (2z - 3) + z = 32
2z + 2z - 3 + z = 32
5z - 3 = 32
5z = 35
z = 7
x = 2(7) = 14
y = 14 - 3 = 11
z = 7
The ages are 14, 11, and 7
2006-08-26 12:12:03
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answer #5
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answered by Sherman81 6
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x + y + z = 32
x = 2z
x - y = 3
Solve and you get x = 14, y = 11, and z = 7.
2006-08-26 10:37:56
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answer #6
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answered by no clue about cars 1
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Why are you asking this nerd.
2006-08-26 10:35:30
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answer #7
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answered by Jonathan 1
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