veronicazeledon veronicazeledon

25-03-2015
Mathematics

contestada

Mercado is 37 years old. His age is 5 years more than four times his daughter's age. How old is his daughter?

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konrad509 konrad509

25-03-2015

x - daughter's age

[tex]37=4x+5\\ 4x=32\\ x=8[/tex]

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SchwarzschildRadius SchwarzschildRadius

25-03-2015

So,

Let Mercado's age be m and his daughter's age be d.

Our first equation: m = 37

Our second equation: m = 5 + 4d

Substitute 37 for m
37 = 5 + 4d

Subtract 5 from both sides
32 = 4d

Divide both sides by 4
8 = d

His daughter is 8 years old.

Answer Link

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