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Ostrovityanka [42]
2 years ago
11

What is the solution of x +

frac{1}{5}" align="absmiddle" class="latex-formula"> (x - 1) = 1?
A. 1
B. \frac{1}{3}
C. \frac{2}{3}
D. \frac{5}{3}
Mathematics
2 answers:
givi [52]2 years ago
6 0
Your answer would be A.1
patriot [66]2 years ago
5 0

Answer:

\boxed{A. \: 1}

Step-by-step explanation:

=  > x +  \frac{1}{5} (x - 1) = 1 \\  \\  =  > x + ( \frac{1}{5}  \times x) -  (\frac{1}{5}  \times 1) = 1 \\  \\  =  > x +  \frac{x}{5}  -  \frac{1}{5}  = 1 \\  \\  =  >( x \times  \frac{5}{5} ) +  \frac{x}{5}  -   \frac{1}{5}  = 1 \\  \\  =  >  \frac{5x}{5}  +  \frac{x}{5}  = 1 +  \frac{1}{5}  \\  \\  =  >  \frac{5x + x}{5}  = (1 \times  \frac{5}{5} ) +  \frac{1}{5}  \\  \\  =  >  \frac{6x}{5}  =  \frac{5}{5}  +  \frac{1}{5}  \\  \\  =  >  \frac{6x}{ \cancel{5}}  =  \frac{5 + 1}{ \cancel{5}}  \\  \\  =  > 6x = 6 \\  \\  =  > x =  \frac{ \cancel{6}}{ \cancel{6}}  \\  \\  = > x = 1

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Please help me with just this one question.<br> 7th grade math
GREYUIT [131]

Answer:

B. y= (2x/3)+4

Step-by-step explanation:

i picked a point and plugged the x and y into the equation to see if it would work

(example:  (8)=\frac{2(6)}{3} +4\\ )

then i did the same thing with a different point on the graph to make sure it was correct :)

6 0
3 years ago
If you have an 80 average so far in class after 3 tests what would you need to get on the fourth test to have an average of 83?​
Monica [59]

Answer:

92

Step-by-step explanation:

83*4 = 332

And 80*3 = 240

332-240 = 92

So you would need 92

8 0
3 years ago
What is the equation of the line that passes through the point (-3,-8) and has a slope of 4?
coldgirl [10]

Step-by-step explanation:

the easiest approach with a given point and the slope of the line is the point-slope form :

y - y1 = a(x - x1)

where "a" is the slope, and (x1, y1) is a point on the line.

so, we get

y - -8 = 4(x - -3)

y + 8 = 4(x + 3)

if we need the slope-intercept form

y = ax + b

we now simplify the point-slope form

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3 0
2 years ago
If 40% of a number is 80 what is 25% of that number?
olga2289 [7]

Answer:

25% of 200 is 50

Step-by-step explanation

40% of a number is 80

.40 * n = 80

Divide each side by .4

.40 n/.4 = 80/.4

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7 0
3 years ago
Which number can each term of the equation be multiplied by to eliminate the decimals before solving?
Sati [7]
Ok...

5.6 = 56/10 = 560/100

1.1 = 11/10 = 110/100

0.12 = 12/100

--------------

\frac { 560 }{ 100 } j-\frac { 12 }{ 100 } =4+\frac { 110 }{ 100 } j\\ \\ \\ 100\times \left( \frac { 560 }{ 100 } j-\frac { 12 }{ 100 }  \right) =\left( 4+\frac { 110 }{ 100 } j \right) \times 100\\ \\ 560j-12=400+110j\\ \\ 560j-110j=400+12\\ \\ 450j=412\\ \\ j=\frac { 412 }{ 450 }

So, the answer is: 100

You could multiply both sides of the equation by 100 to get the value of (j) quickly.
6 0
3 years ago
Read 2 more answers
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