smartkid45 smartkid45
  • 17-06-2016
  • Mathematics
contestada

Ms. Cooper drove 18 miles in 31 hour. What is her speed in miles per hour?

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7carson7
7carson7 7carson7
  • 17-06-2016
1.72 
31 Divided by 18 =p

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jhonyy9
jhonyy9 jhonyy9
  • 17-06-2016
use the rule of 3 simple 

18 mls ---- 31 h
 x mls ----- 1 h
---------------------

x = 1*18/31 

x = 18/31 

her speed will be 18/31 miles per hour 
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