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DANXZKIE15IN
Answered

The cost c varies directly as the number n pencil if the cost of once pencil is 10php how much. Does 15 pencil cost​

Sagot :

AGBOIIIN

SOLUTION

first finding for the constant

  • c = kn
  • 10 = k(1)
  • 10/1 = k
  • 10 = k

Then finding for the unknown value

  • c = kn
  • c = 10(15)
  • c = 150

ANSWER

  • 15 pencil costs Php 150

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