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  • 24-09-2015
  • Mathematics
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4x 8y = 40, when y = 0.8?

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Аноним Аноним
  • 24-09-2015
4x  times  8(0.8)  = 40 

4x times 6.4   = 40

25.6x = 40

25.6x/25.6 = 40/25.6

x = 1.5625
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