3 years ago

A number increased by the sum of the number and four is 20. Find the number.

Mathematics

1 answer:

miss Akunina [59]3 years ago

7 0

Answer:

i think 5 is the right answer

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Free points, please solve -2m+36=2(6m-3)?

Elan Coil [88]

Answer:

$\Huge \boxed{m=3}$

Step-by-step explanation:

$-2m+36=2(6m-3)$

Expanding brackets.

$-2m+36=12m-6$

Adding 2m and 6 to both sides.

$36+6=12m+2m$

Combining like terms.

$42=14m$

Dividing both sides by 14.

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Please help me with these. <br> Thanks

DIA [1.3K]

5.

f(K) = D^3 => f(25) = 125 => 25 * t = 125 ( because K is directly proportional with D^3 )=> t = 125 / 25 => t = 5 => f(25) = 25 * 5 => K * 5 = D^3 ;

6.

f(L) = F^3 => f(2) =3^3 =>f(2) = 27 => 2 / t =27 => t = 2 / 27 => t = 0.074 => f(2) = 2 / 0.074 => K / 0.074 = F^3 ;

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BlackZzzverrR [31]

The answer is B. CD=KL, DE=LM, EF=MN, and so on

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