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3 years ago

Which equation represents the statement? mark's age, x, is 6 times his age 2 years ago.

Mathematics

2 answers:

antiseptic1488 [7]3 years ago

4 0

Answer:

$a.x=6(x-2)$

Step-by-step explanation:

We are given that

Mark's age=x

2 years ago,

Mark's age=x-2

We have to find the equation that represents the statement.

According to question

6 times his 2 years ago

Then , we get

$6(x-2)$

According to question

$x=6(x-2)$

Hence, option a is true.

Answer: $a.x=6(x-2)$

s2008m [1.1K]3 years ago

3 0

I'm pretty sure the answer is d.

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$(\frac{1}{K}) + (\frac{1}{K-3}) = (\frac{1}{2})\\\implies \frac{(K-3) + K}{K (K-3)} = (\frac{1}{2})\\\implies 2(2K -3) = K^2 - 3K\\\implies k^2 - 3K -4K +6 = 0\\\implies K^2 - 7K + 6= 0\\\implies K^2 - 6K - K + 6= 0\\\implies K(K-6) -1(K - 6)= 0\\\implies (K-6)(K-1) = 0$

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