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3 years ago

-2.2-(-4x-2)=-(-x-3.1)

Mathematics

1 answer:

Dmitry [639]3 years ago

6 0

Answer: x=1.1

Step-by-step explanation:

-2.2 - (-4x - 2) = - (-x - 3.1)

-2.2 + 4x + 2 = x + 3.1

-0.2 + 4x = x + 3.1

+0.2 + 0.2

4x = x + 3.3

-x -x

3x = 3.3

/3 /3

x = 1.1

hope this helps!

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Sami cut 6 and three fourth inches off a long roll of paper if the row 36 and one third inches long how long was the original ro

cestrela7 [59]

Answer:

43 1 ÷12

Step-by-step explanation:

The computation of the length of the original roll of papers is shown below:

36 1 ÷3 and 6 3 ÷ 4 together

Now convert the above fractions into a number

36 1 ÷ 3 = 109 ÷3

And,

6 3 ÷4 = 27 ÷ 4

Now add these two numbers i.e.

109 ÷3 + 27 ÷ 4

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2 years ago

Santiago receives an allowance of $7 every week.How much total dose he receve after 4 weeks?

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Santiago has a total of $28.

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2 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%7Ba%5E%7B2%7D-1%7D%7B2-5a%7D%20times%20%5Cfrac%7B15a-6%7D%7Ba%5E%7B2%7D%2B5a-6%7D" id=

stepan [7]

$\bf \cfrac{a^2-1}{2-5a}\times \cfrac{15-6}{a^2+5a-6}\\\\
-----------------------------\\\\
recall\quad \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
thus\quad a^2-1\iff a^2-1^2\implies (a-1)(a+1)
\\\\\\
now\quad a^2+5a-6\implies (a+6)(a-1)\\\\
-----------------------------\\\\
thus
\\\\\\
\cfrac{a^2-1}{2-5a}\times \cfrac{15-6}{a^2+5a-6}\implies \cfrac{(a-1)(a+1)}{2-5a}\times \cfrac{3(5a-2)}{(a+6)(a-1)}\\\\
-----------------------------\\\\
$

$\bf now\quad 3(5a-2) \iff -3(2-5a)\\\\
-----------------------------\\\\
thus
\\\\\\
\cfrac{\underline{(a-1)}(a+1)}{\underline{2-5a}}\times \cfrac{-3\underline{(2-5a)}}{(a+6)\underline{(a-1)}}\implies \cfrac{-3(a+1)}{a+6}$

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2 years ago

The angle measures 30°, 60°, 120°, and 150° are written on

GREYUIT [131]

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2 years ago

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11111nata11111 [884]

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21 years and 9 months. :)

Step-by-step explanation:

There are 12 months in a year.

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2 years ago