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lapo4ka [179]
3 years ago
7

What is the solution to the system of equations below? y = negative one-third x + 6 and x = –6

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Answer:2

26x + y = 23 → y = 23 – 6x.

7x + y = 25 → 7x + (23 – 6x) = 25 → x + 23 = 25 → x = 2

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Can u help me answer this I’m so stuck
Slav-nsk [51]

Answer:

I learned a great formula for repeating decimals.

OK! Let's get started. For each decimal spot that is recurring, it is put over a 9, rather than a 10.

In your case, 0.142 would be 142 over 3 9s.

142/999 cannot be simplified.

Therefore, 142/999 is our answer.

Since the repentant is over only one digit, we have to solve another way.

We can represent it as "x"

10x = 5.66.... - x = 0.56.....=5.1

9x = 51/10

51/10/9 = 51/90 = 17/30 as our answer.

We can solve this next one the same way:

100x = 3.44444 - x  = 3.41

999x = 341/100

341/100/999 = 31/900 as our answer.

Now! 1.52 can be solved the same way.

In doing so, we achieve the answer 151/99 as our answer

This one can be done the same way as well. I'll give you the answer, but next time try to solve it for yourself!

179/495 is our answer.

Now, you asked for 0.004 as a fraction.

That is equivalent to 4/999 as our answer.

Note: This is because each 0 can be counted as a 9, increasing in order. (i.e., over 100 is over 99 over 1000 is over 999 over 10 9)

6 0
3 years ago
Which products result in a difference of square or perfect square trinomial? Plzzz help quick!!
vagabundo [1.1K]

Answer:

  • perfect square: 2, 5
  • difference of squares: 1, 6

Step-by-step explanation:

If the two factors are identical, their product will be a perfect square.

If one of the factors is the difference of terms that are summed in the other factor, the product will be the difference of squares.

  (a +b)(a -b) = a² -b² . . . . . matches the 1st and 6th choices

  (a +b)(a +b) = (a +b)² . . . . matches the 2nd and 5th choices

3 0
3 years ago
PLEASE ANSWER! VERY IMPORTANT LAST IMPORTANT QUESTION! MUST BE CORRECT! POINTS GIVEN!
larisa86 [58]
Emma is always. When solving, you use the PEMDAS method going from left to right.

Your equation would be something like  " -2 * -2 * 4"
Because you would start with (-2 * -2) = 4 and then move to 4 * 4 = 16

If your equation were something like " -2 * 3 * -2"
You would do -2 * 3 = -6 and then move to -6 * -2 = 12

Remember "Two negatives = a positive"
8 0
3 years ago
Help i dont get this
Oxana [17]

substitute the place of the X

8 0
2 years ago
Ms. May has to pay $5 for each bag of flour to make her cookies. She needs to buy 20 bags of flour. How much will she have to pa
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$100 dollars will be the end price.
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