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Dafna11 [192]
2 years ago
15

The sum of two consecutive even integers is 122. What are the two numbers?

Mathematics
2 answers:
irakobra [83]2 years ago
7 0

Answer:

  1. Let the first number = x
  2. Therefore, the other number = x + 2 (x+2 is so as in two consecutive even numbers there is 1 odd number)
  3. Now, According to question
  4. x + x + 2 = 122
  5. 2x + 2 = 122
  6. 2x = 122-2
  7. 2x = 120
  8. x = 120/2
  9. x = 60
  10. Now, first no. = x = 60
  11. Therefore, second no. = x + 2 = 60 + 2 = 62
  12. Equation 60 + 62 = 122

Step-by-step explanation:

If you like my answer than please mark me brainliest

leonid [27]2 years ago
3 0

Answer:

The numbers are : 60 , 62

Step-by-step explanation:

Let the two consecutive even numbers be 2x , 2x + 2

2x + 2x + 2 = 122

Combine like terms

4x + 2 = 122

Subtract 2 from both sides

4x = 122 - 2

4x = 120

x = 120/4

x = 30

2x = 2*30 = 60

2x + 2 = 2*30 + 2 = 60 + 2 = 62

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the first term of an arithmetic sequence is 10 and the sum of the first five terms is 250,find the sequence​
Crazy boy [7]

Answer:

The  sequence  is:

10, 30, 50, 70, 90.....................

Step-by-step explanation:

We have,

First term (a) = 10

Common difference (d) = ?

Sum of first 5 terms (S_{5}) = 250

or, \frac{n}{2} [{2a+(n-1)d}] = 250

or, \frac{5}{2} [2*10 + 4d]=250

or, \frac{5}{2} * 4[5+d]=250

or, 10(5 + d) =250

or, 5 + d = 25

∴ d = 20

Now,

2nd term = a + d = 10 + 20 = 30

3rd term = a + 2d = 10 + 2*20 = 10 + 40 = 50

4th term = a + 3d = 10 + 3*20 = 10 + 60 = 70

5th term = a + 4d = 10 + 4*20 = 10 + 80 = 90

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3 years ago
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Hatshy [7]

Answer:

10h20m AM

Step-by-step explanation:

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3 years ago
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2. The student council is sponsoring a concert as
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Answer:

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Step-by-step explanation:

You start with the students, $3 for each and 200 of them attend. 3x200=600 dollars in total. Then you would subtract 600 from 1,000. Next you will do the adults, 5x80=400 (The "leftover" cash) $5 for each times 80 adults will be $400 in total.

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lutik1710 [3]

Answer: -4x-34y-32

(I think this is right but I am not completely sure... if its not I am sorry :/ )

Step-by-step explanation:

First Way:

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Second Way:

48 (1/4x - 1/3y - 2/6x - 3/8y - 2/3)

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