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ashleyb

can somebody please help me with this question??...A copy machine makes 60 copies per minute. a second machine makes 80 copies per minute. the second machine starts making copies 2 minutes after the first machine starts. both machines stop making copies 8 minutes after the first machine started. together, the 2 machines made how many copies?

  • one year ago
  • one year ago

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  1. jim_thompson5910
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    the first machine runs for 8 minutes the second machine runs for 6 minutes (since the first one got a 2 min head start)

    • one year ago
  2. jim_thompson5910
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    first one makes 60 copies per min, so how many copies can the first one make in 8 min?

    • one year ago
  3. ashleyb
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    480

    • one year ago
  4. jim_thompson5910
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    the second one makes 80 copies per min and runs for 6 min so it makes a total of _____ copies

    • one year ago
  5. ashleyb
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    480

    • one year ago
  6. jim_thompson5910
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    add the two totals

    • one year ago
  7. ashleyb
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    960

    • one year ago
  8. jim_thompson5910
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    that's your final answer

    • one year ago
  9. ashleyb
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    thankyou!

    • one year ago
  10. jim_thompson5910
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    you're welcome

    • one year ago
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