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Basile [38]
3 years ago
13

Solving by substitution​

Mathematics
2 answers:
Lesechka [4]3 years ago
6 0
* يدرج صوت سيارة الإسعاف*
IgorC [24]3 years ago
3 0

\huge\pink{\fbox{\underline{\underline{\maltese{Answer}\maltese}}}}

\\

y = -9x -26

=> 9x + y = -26 × 2

=> 18x + 2y = -52 ....(i)

\\

- 2x -7y = -1

=> 2x + 7y = 1 × 9

=> 18x + 63y = 9 ....(ii)

\\

From (i) & (ii) ,

18x + 02y = -52

18x + 63y = 09

\underline{ -\:\:\:\:\:\:-\:\:\:\:\:\:\:-}

-61 y = – 61

=> y = 1

\\

2x + 7y = 1

=> 2x + 7×1 = 1

=> 2x = 1-7

=> x = \frac{-6}{2}

<h3>=> x = -3</h3>

\\\\\\

HOPE IT HELPS

PLEASE MARK ME BRAINLIEST ☺️

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What is the answer to 13 in precise detail?
lyudmila [28]

Well, I don't know.  Let's see . . . . .

First draw: One 'M' available out of 11 letters.   Probability of picking it = 1/11.
2nd draw:  Four 'I's available out of 10 letters.  Probability of picking one = 4/10.
3rd draw:  Four 'S's available out of 9 letters.   Probability of picking one = 4/9.
4th draw:  Three 'S's available out of 8 letters. Probability of picking one = 3/8.
5th draw:  Three 'I's available out of 7 letters.  Probability of picking one = 3/7.
6th draw:  Two 'S's available out of 6 letters.   Probability of picking one = 2/6.
7th draw:  One 'S' available out of 5 letters.     Probability of picking it = 1/5.
8th draw:  Two 'I's available out of 4 letters.     Probability of picking it = 2/4.
9th draw:  Two 'P's available out of 3 letters.   Probability of picking one = 2/3.
10th draw: One 'P' available out of 2 letters.   Probability of picking it = 1/2.
11th draw: One letter left.  It is an 'I'.  Probability of picking it = 1 .

Probability of all of those draws in order =

    (1/11) x (4/10) x (4/9) x (3/8) x (3/7) x (2/6) x (1/5) x (2/4) x (2/3) x (1/2) x (1) =

           1,152 / 39,916,800 =

                 1 / 34,650 =

                                     0.00002886 =

                                   <em>  0.002886 percent</em> (rounded)

Not a good bet.  (But better than the lottery.)


7 0
4 years ago
Jerry had 45 tickets for games at a carnival.he used 1/3 of the tickets to play ball-toss game. He used 2/5 of the tickets to pl
MrRa [10]
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Answer:

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Hope this helps ;)

5 0
3 years ago
I need help for this
Bess [88]

y=2x+7

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6 0
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Read 2 more answers
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shusha [124]

B. \sqrt{x}  +  \sqrt{x - 1} ✅

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

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\bold{ \green{ \star{ \orange{Mystique35}}}}⋆

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