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Vedmedyk [2.9K]

3 years ago

10

The numerator of the expression 3-x/x-3 can be written as

1 answer:

Ierofanga [76]3 years ago

3 0

Answer:

The answer is -(x-3)

Step-by-step explanation:

It can be written as a negative number so it can be divided/cut :

3 - x = -x + 3

= -(x+3)

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Solve the system of the linear equation using any method:<br> 2x+5y=4<br> 4x+7y=11

mr_godi [17]

Multiply the first equation by 2:
4x+10y=8
Subtract the second equation from this so the 4x cancels:
3y = -3
y = -1
Plug into first equation:
2x -5 = 4
2x = 9
x = 9/2 = 4 1/2 = 4.5
So (x,y) = (-1,4.5)

3 0

3 years ago

Read 2 more answers

I’d appreciate the help!

Elis [28]

Answer:

$\displaystyle 1\frac{119}{250}\:liter$

$\displaystyle 7,5\:sleps$

$\displaystyle 37,3\:sleps$

Step-by-step explanation:

$\displaystyle 1\frac{119}{250} = \frac{1476}{1000}$

$\displaystyle 1\frac{1}{13} \times 7 = 7\frac{7}{13} ≈ 7,538461538 ≈ 7,5$

$\displaystyle \frac{41}{1\frac{1}{10}} = 37\frac{3}{11} ≈ 37,3$

I am joyous to assist you anytime.

4 0

3 years ago

in a AP the first term is 8,nth term is 33 and sum to first n terms is 123.Find n and common difference

allsm [11]

I believe there is no such AP...

Recursively, this sequence is supposed to be given by

$\begin{cases}a_1=8\\a_k=a_{k-1}+d&\text{for }k>1\end{cases}$

so that

$a_k=a_{k-1}+d=a_{k-2}+2d=\cdots=a_1+(k-1)d$

$a_n=a_1+(n-1)d$

$33=8+(n-1)d$

$21=(n-1)d$

$n$ has to be an integer, which means there are 4 possible cases.

Case 1: $n-1=1$ and $d=21$ . But

$\displaystyle\sum_{k=1}^2(8+21(k-1))=37\neq123$

Case 2: $n-1=21$ and $d=1$ . But

$\displaystyle\sum_{k=1}^{22}(8+1(k-1))=407\neq123$

Case 3: $n-1=3$ and $d=7$ . But

$\displaystyle\sum_{k=1}^4(8+7(k-1))=74\neq123$

Case 4: $n-1=7$ and $d=3$ . But

$\displaystyle\sum_{k=1}^8(8+3(k-1))=148\neq123$

8 0

3 years ago

Kendra had a beaded necklace business. She can make 12 necklaces in 2 hours. How long will it take her to make 9 necklaces?

mars1129 [50]

then + 10% of that total for overhead costs.

6 0

3 years ago

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What is the median of the data? 68,69,71,71,71,73,74,75,75,78 answers: 71,72,78,72.5

Klio2033 [76]

The answer is 72 because ur supposed to do (71+73)/2

5 0

3 years ago

Read 2 more answers