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Bogdan [553]
3 years ago
7

Ram is 3 times old as his son and the sum of their age is 48.how old is each?

Mathematics
2 answers:
stich3 [128]3 years ago
6 0

Answer:

12 and 36

Step-by-step explanation:

x+3x=48

4x=48

divide by 4

x=12

48-12=36

Daniel [21]3 years ago
4 0

Answer:

Ram is 3 times old as his son and the sum of their age is 48.

3 times older = 3x

x = unknown number

48 = sum of the ages

3x+x=48

4x=48

x=12

now one of the sons is 12 y/o now to see how old the other one we're going to have to subtract 12 from 48

48 - 12 = 36

~batmans wife dun dun dun....

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\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{2+2x^2+2x\sqrt{1+x^2}}

Step-by-step explanation:

<u>The Derivative of a Function</u>

The derivative of f, also known as the instantaneous rate of change, or the slope of the tangent line to the graph of f, can be computed by the definition formula

\displaystyle f'(x)=\lim\limits_{\Delta x \rightarrow 0}\frac{f(x+\Delta x)-f(x)}{\Delta x}

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If we set

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y'=3[tan^{-1}(x+\sqrt{1+x^2})]'

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\displaystyle y'=3[tan^{-1}u]'=3\frac{u'}{1+u^2}

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Operating

\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{1+x^2+2x\sqrt{1+x^2}+1+x^2}

\boxed{\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{2+2x^2+2x\sqrt{1+x^2}}}

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