anonymous
  • anonymous
A store received $823 from the sale of 5 tape recorders and 7 radios. If the receipts from the tape recorders exceeded the receipts from the radios by $137, what was the cost of a tape recorder? i got 49..is that right??? (:
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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amistre64
  • amistre64
5t + 7r = 823 t -137 = r 5t + 7(t-137) = 823 5t + 7t-(7)137) = 823 13t = 823 + 7(137) t = (823 + 7(137))/13 = 137.08/5 = 27.42 maybe? i might have a wrong interpretation in my equations tho
amistre64
  • amistre64
5t = 7r + 137 ?? maybe
amistre64
  • amistre64
14r = 823 - 137 r = 49 then.... 5t = 7(49) + 137 t = [7(49) + 137]/14 = 96 then

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amistre64
  • amistre64
t = [7(49) + 137]/5 = 96 ..... i have no idea where the 14 came from lol
anonymous
  • anonymous
thanks(:

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