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  • 20-09-2016
  • Mathematics
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Help with 6 and 7 please!

Help with 6 and 7 please class=

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Аноним Аноним
  • 20-09-2016
What you need to do on Number 6 is round 139 to 140 and 18 to 20 now multiply 140x20 = 2800. His mistake was rounding to the wrong numbers.
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