Is this solvable? | Mathematics | Page 1

gloomy raptor Aug 16, 2024, 1:06 PM

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seems impossible cuz i feel like i need more context

plush flowerBOT Aug 16, 2024, 1:06 PM

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buoyant hawk Aug 16, 2024, 1:09 PM

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3 equations and 3 variables definitely solvable unless system of equations are inconsistent

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i.e. they form a sheaf or a plane

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or a prism

gloomy raptor Aug 16, 2024, 1:11 PM

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i tried solving it and i got 5 children lol

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I made 3 equations: (let y = sum of parents' ages, z = sum of children's ages, n = number of children)
y = 2z
y - 10 = 4(z -5n)
y + 15 = z + 15n

buoyant hawk Aug 16, 2024, 1:13 PM

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well its easier if you moved the constant to one side

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and also include all variables, even if its coefficient is 0

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actually nevermind

gloomy raptor Aug 16, 2024, 1:14 PM

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i haven't really checked if it's correct lol

buoyant hawk Aug 16, 2024, 1:14 PM

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ignore all of that lol

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y = 2z
y-5 = 4z
y+15 = z

gloomy raptor Aug 16, 2024, 1:15 PM

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well it's asking for the "number of children"

buoyant hawk Aug 16, 2024, 1:16 PM

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ye im just saw that one of the variables havae been completely ommited and isnt needed to solve the question

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its un solvable

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ofc

gloomy raptor Aug 16, 2024, 1:17 PM

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ok by graphing my solution, none of them meet

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aight thanks bro

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.close

#Is this solvable?