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antoniya [11.8K]
3 years ago
9

If 3, x, y, -9 are in A.P, find the values of x and y.​

Mathematics
1 answer:
Serggg [28]3 years ago
6 0

Answer:

  • x = -1
  • y = -5

Step-by-step explanation:

The common difference (d) can be found using the first and 4th terms:

  a1 = 3

  a4 = a1 +d(4 -1)

  -9 = 3 +3d . . . . . simplify

  -3 = 1 + d . . . . . . divide by 3

  -4 = d . . . . . . . . . subtract 1

Then ...

  x = a1 + d = 3 -4 = -1

  y = x + d = -1 -4 = -5

The values of x and y are -1 and -5, respectively.

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Answer:

y=4/3 x -5/3

Step-by-step explanation:

Please see attached picture for full solution.

8 0
3 years ago
Twelve hungry teenagers can devour a very large pizza in $20$ minutes. How many teenagers would it take to finish a very large p
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5 0
2 years ago
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g100num [7]

Answer:

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Step-by-step explanation:

The equation of a line in point slope form is expressed as y - y0 = m(x-x0)

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Given the equation

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5 0
2 years ago
Kamis fitness trainer recommends that she drinks 12 fluid ounces of water 8 times a day. How many cups does kami drink in one da
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Answer:

12 cups

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5 0
3 years ago
Read 2 more answers
9x ≥117 which numbers below belong to the solution set of the inequality
lakkis [162]
9 x ≥ 117

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hope this helps!
7 0
3 years ago
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