anonymous
  • anonymous
Call Wireless phone company charges $0.50 for the first call you make and $0.10 for each additional minute. The cost of a phone call can be expressed by the formula C = 0.50 + 0.10(m – 1), where C is the total cost in dollars and m is the number of minutes that you talk. If the bill for your phone call was $1.90, how long did you talk?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
acc to ques. 1.90 = 0.50 +0.10(m-1) so 1.90 -1.50 / 0.10 =14 hence 14 + m-1 so m is equal to 15
anonymous
  • anonymous
oh sorry 14 = m - 1 hence m = 15
anonymous
  • anonymous
Thanks!!!!

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anonymous
  • anonymous
you're welcome !!
anonymous
  • anonymous
is it15

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