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Alexandra [31]
2 years ago
14

Do it quickly please for brainliest

Mathematics
2 answers:
Murrr4er [49]2 years ago
6 0

Answer:

x = 98/17 = 5.765

Step-by-step explanation:

Zina [86]2 years ago
5 0

Step-by-step explanation:

  • x/(2x - 4) - (2x - 11)/(x + 2) = 5/8
  • x/(x - 2) - (4x - 22)/(x + 2) = 5/4
  • x(x + 2) - (4x - 22)(x - 2) = 5/4(x + 2)(x - 2)
  • 4(x² + 2x - 4x² + 8x + 22x - 44) = 5(x² - 4)
  • 4(-3x² + 32x - 44) = 5x² - 20
  • - 12x² + 128x - 176 - 5x² + 20 = 0
  • - 17x² + 128x - 156 = 0
  • 17x² - 128x + 156 = 0
  • x = (64 ± 38)/17
  • x = 6 or x = 26/17

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A mother is 24 years older than her daughter.Before eight years she was seven times her daughter's age.Find their present ages​
Ne4ueva [31]

Answer:

Mother's Present Age = 36 years

Daughter's Present Age = 12 years

Step-by-step explanation:

Let present age of mother be "m" and present age of daughter be "d"

Mother is 24 years older than her daughter, so we can write:

m = 24 + d

8 years ago, Mother was 7 times old as daughter, that would be:

m - 8 = 7(d - 8)

Note, since 8 years ago, both "m" and "d" have 8 subtracted from it.

Now we substitute Equation 1 into Equation 2 and solve for d:

m - 8 = 7(d - 8)\\24+d - 8 = 7(d - 8)\\16+d=7d-56\\6d=72\\d=\frac{72}{6}\\d=12

Mother age, m, would be:

m = 24 + d

m = 24 + 12

m = 36

Hence,

Mother's Present Age = 36 years

Daughter's Present Age = 12 years

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3 years ago
A school bought 32 new desks each desk coast 24$ estimate how much the school spent on the new desks
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