3 years ago

Does anyone know this?!?.....

1 answer:

3 0

I believe the answer is "C"

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zzz [600]

Answer:

you don't know how to take proper pics..

you looks a little boring..

and maybe intelligent..

and can't tell more since it's not very clear

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2 years ago

Anon25 [30]

Yes and no it depends on what the answer is

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3 years ago

kondor19780726 [428]

Answer:

Yes, you are correct.

Step-by-step explanation:

$\text{Let the number of puzzle solved by Child B is} x\text{.}$

$\text{Then the average number of puzzle solved is}$

$\frac{5x+x+(x+4)}{3}=13$

$\frac{7x+4}{3}=13$

$7x+4=39$

$7x=35$

$x=5$

$\text{Therefore, the number of puzzles solved by child A is }5x=5\cdot5=25$

$\color{blue}\text{A little tips here: You can check it by substituting your answer to the original equation.}$

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3 years ago

Anika [276]

129 .................

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2 years ago

Ad libitum [116K]

For Perimeter you add all the sides of the figure and the total is your perimeter. For Area you multiply the length times the width.

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3 years ago