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stich3 [128]
3 years ago
5

31*r+1.1*(35−31)*r = 410.64.

Mathematics
1 answer:
Rasek [7]3 years ago
5 0

Answer:

11.6

Step-by-step explanation:

<u>Solving with steps as below:</u>

  • 31*r+1.1*(35−31)*r = 410.64
  • 31r + 1.1*4r = 410.64
  • 31r + 4.4r = 410.64
  • 35.4r = 410.64
  • r = 410.64/35.4
  • r = 11.6

<u>Answer is:</u> r =11.6

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