mslooney120 mslooney120
  • 01-02-2021
  • Mathematics
contestada

Need this turned in by tonight. Solving for x. My brain is fried, I have been doing math for the last 4 hour.Help!!!!!

Need this turned in by tonight Solving for x My brain is fried I have been doing math for the last 4 hourHelp class=
Need this turned in by tonight Solving for x My brain is fried I have been doing math for the last 4 hourHelp class=
Need this turned in by tonight Solving for x My brain is fried I have been doing math for the last 4 hourHelp class=

Respuesta :

mhanifa
mhanifa mhanifa
  • 02-02-2021

Answer:

  • 18. x = 24.5
  • 19. x = 4
  • 21. x = 10

Step-by-step explanation:

Corresponding sides have same ratio

Q18

  • 7/6 = x / (27- 6)
  • 6x = 7*21
  • x = 147/6
  • x = 24.5

Q19

  • (x + 5)/15 = (5x + 1)/35
  • (x + 5)/3 = (5x + 1)/7
  • 7(x + 5) = 3(5x + 1)
  • 7x + 35 = 15x + 3
  • 15x - 7x = 35 - 3
  • 8x = 32
  • x = 4

Q21

  • (x + 6)/24 = (2x - 2)/27
  • (x + 6)/8 = (2x - 2)/9
  • 8(2x - 2) = 9(x + 6)
  • 16x - 16 = 9x + 54
  • 16x - 9x = 54 + 16
  • 7x = 70
  • x = 10
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