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dexar [7]
3 years ago
5

please help John's age increased by 11 is 5 less than 5 times his age. How old is he? If x represents John's age, which of the f

ollowing equations could be used to solve this problem? x + 11 - 5 = 5x x + 11 = 5x - 5 x + 11 = 5 - 5x
Mathematics
1 answer:
Keith_Richards [23]3 years ago
7 0
So x is John's age.
We can solve this problem by working backwards.
Since it's 5 times his age, we first do 5x.
And then since it's five less, we move on to 5x - 5
And then we add the John's age is increased by 11: 5x - 5 = x + 11
I hope this helped :)
(It should be the second one you listed)
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Answer:

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Step-by-step explanation:

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krek1111 [17]
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netineya [11]

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3 0
2 years ago
The value of
marusya05 [52]

\large\underline{\sf{Solution-}}

We have to find out the value of the fraction.

<u>Let us assume that:</u>

\sf \longmapsto x =2 +   \dfrac{1}{2 +  \dfrac{1}{2 +  \dfrac{1}{2 + ... \infty} } }

<u>We can also write it as:</u>

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\sf \longmapsto  {x}^{2}  =2x + 1

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<u>Comparing </u>the given <u>equation</u> with <u>ax² + bx + c = 0,</u> we get:

\sf \longmapsto\begin{cases} \sf a =1 \\ \sf b =  - 2 \\ \sf c =  - 1 \end{cases}

<u>By quadratic formula:</u>

\sf \longmapsto x =  \dfrac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a}

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\sf :\implies x = 1 + \sqrt{2}

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4 0
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kondaur [170]

Answer:

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