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vodomira [7]
2 years ago
9

The sum of the reciprocals of two consecutive odd integers is 24/143. find the two integers.

Mathematics
1 answer:
nordsb [41]2 years ago
4 0
Let one integer be x, the consecutive odd integer is x+2
reciprocals are 1/x and 1/(x+2)
1/x +1/(x+2)=24/143
make the denominators the same:
(x+2)/[x(x+2)] +x/[x(x+2)]=24/143
143(2x+2)=24(x)(x+2)
286x+286=24x²+48x
24x²-238x-286=0
use the quadratic formula: x=22 this doesn't work because 22 is not an odd number.
or x=-2.1666666666 (this is not an integer)

weird.
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List all the even numbers less than 50,
nexus9112 [7]

Step-by-step explanation:

Even numbers less than 50={2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48}

Total=24

Multiples of 5={10,20,30,40}

Probability (multiple of 5)=4/24

=1/6

P(between 10 and 30)=12,14,16, 18, 20, 22, 24, 26, 28

Total=9

Probability=9/24

=3/8

Probability is number 12

=1/24

Probability it has square less than 40

=(4,36)

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Probability=2/24

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7 0
2 years ago
Help plz i dont undertand
lora16 [44]

Answers:

  • x = 4
  • AB = 36
  • BC = 36
  • AC = 36

All three sides are 36 units long.

===========================================================

Explanation:

Triangle ABC is equilateral, so all three sides are the same length.

Pick any two of those sides, set them equal to each other, and solve for x

AB = BC

8x+4 = 11x-8

8x-11x = -8-4

-3x = -12

x = -12/(-3)

x = 4

Use this x value to find each side. We should get the same value (if not, then an error occurred in solving for x).

  • AB = 8x+4 = 8*4+4 = 32+4 = 36
  • BC = 11x-8 = 11*4-8 = 44-8 = 36
  • AC = 9x = 9*4 = 36

We get the same value for the three side lengths, so this confirms we have the correct x value.

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2 years ago
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-BARSIC- [3]

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Step-by-step explanation:

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Alla [95]

Answer:

5(t - g) = 2t + 7 \\ 5t - 5g = 2t + 7 \\ 5t - 2t = 7 + 5g \\ 3t = 7 + 5g \\ t =  \frac{7 + 5g}{3}

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2 years ago
Start time 3:30 pm end time 7:00 pm what is elapsed time?
DiKsa [7]
Hello there!

Your answer is 3 hours and 30 minutes.

I hope I have been of assistance!

~ Fire
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2 years ago
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