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Oxana [17]
3 years ago
11

PLEASE HELP I NEED TO PASS!

Mathematics
1 answer:
pochemuha3 years ago
3 0

Answer:

Its B

Step-by-step explanation:

Multiply x by 2 to get your answer

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In the equation below, for what value of c does x = 4?<br> 1 / (2x + 4) = 3x-c
rodikova [14]

Answer:

Option D.

Jenn's answer is not correct. She got it substituting c=4 into the equation and solving for "x".

Step-by-step explanation:

Given the following equation:

\frac{1}{2}(2x + 4) = 3x-c

Since you need that x=4, you hace to substitute that value into the equation:

\frac{1}{2}(2(4) + 4) = 3(4)-c

Now you need to solve for "c":

\frac{1}{2}(8 + 4) = 12-c\\\\\frac{12}{2}= 12-c\\\\6=12-c\\\\c+6=12\\\\c=12-6\\\\c=6

Therefore for a  a value of c=6, you get x=4

Then, the you can identify that the correct answer is the one given in the Option D.

Jenn made a mistake, because she substituted c=4 into the equation and then solve for "x":

\frac{1}{2}(2x + 4) = 3x-(4)\\\\x+2=3x-4\\\\2+4=3x-x\\\\6=2x\\\\\frac{6}{2}=x\\\\x=3

3 0
3 years ago
Which fraction below represents 30% in simplest form.?
Luden [163]
3/10 is the answer because 30/100

Devide both by 10 and poof there's the answer!
6 0
3 years ago
the system 5y=8x + 8 and 7y = -8x + 16 is graphed as shown which choice of the point is the point of intersection ?
xenn [34]

Answer:

c= (1/4,2)

Step-by-step explanation:

i did the test and it came out correct i promise !

3 0
3 years ago
9x+35=-5y slope intercept form
german

Answer:

y = - \frac{9}{5} x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

9x + 35 = - 5y ( add 5y to both sides )

5y + 9x + 35 = 0 ( subtract 9x + 35 from both sides )

5y = - 9x - 35 ( divide all terms by 5 )

y = - \frac{9}{5} x - 7 ← in slope- intercept form

6 0
3 years ago
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I need help with this problem please! I'll add a picture of the problem with the answers.
GaryK [48]
Where is th epicture?
7 0
3 years ago
Read 2 more answers
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