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Alexxx [7]
3 years ago
14

Marks age, X is six times his age 2 years ago. which equation represents the statement

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
6 0

x=6x-2 This would be your answer, hope this helps if you need any further explanation feel free to let me know and I would be happy to help you out.

Ne4ueva [31]3 years ago
3 0

The first thing we must do for this case is to define a variable.

We have then:

x: Age of Mark

Mark's age two years ago is given by:

x-2

We know that Mark's age is six times the age he was two years ago.

Therefore, the expression that models the problem is given by:

x = 6 (x-2)

Answer:

The equation that models the problem is:

x = 6 (x-2)

option 3

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Which of the following is not a correct name for the line shown?
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D

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Need help with this.​
sweet [91]

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Let t as y² + 5y .

{y}^{2}  + 5y = t

Rewrite the equation :

t -  \frac{36}{t}  = 0 \\

Multiply sides by t

t \times (t -  \frac{36}{t} ) = t \times 0 \\

{t}^{2}  - 36 = 0

Add sides 36

{t}^{2}  - 36 + 36 = 0 + 36

{t}^{2}  = 36

t = ± \: 6

_________________________________

So :

{y}^{2}  + 5y = 6

Subtract sides 6

{y}^{2}  + 5y - 6 = 6 - 6

{y}^{2}  + 5y - 6 = 0

(y + 6)(y - 1) = 0

y =  - 6 \:  \: or \:  \: y = 1

##############################

{y}^{2} +5y =  - 6

No \:  \:  solution

_________________________________

Thus (( y = 1 )) and (( y = - 6 )) are the roots of the equation .

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