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Andrej [43]
3 years ago
11

George is twice the age of Mike minus 5. The sum of George and Mike's ages is 31. How old is George and write an equation to rep

resent this situation.
Mathematics
1 answer:
Temka [501]3 years ago
6 0

Answer:

  • George is 19

Step-by-step explanation:

George is g and Mike is m

  • g = 2m - 5
  • g + m = 31

Substitute g in the second equation

  • 2m - 5 + m = 31
  • 3m - 5 = 31
  • 3m = 36
  • m = 12

Finding g

  • g = 2*12 - 5 = 24 - 5 = 19
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Let us assume the number of CDs Kate had = x
Number of CDs given to Sue = 5x/6
Number of CDs given to Joan = (5x/6) * ( 7/8)
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Then
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