Seudónimo Seudónimo
  • 02-12-2016
  • Mathematics
contestada

Marta walked at 3.9 miles per hour for 0.72 hours. How far did she walk?

Respuesta :

LvovKirill
LvovKirill LvovKirill
  • 02-12-2016
3.9 x 0.72 = 2.808????????
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Dymomite Dymomite
  • 02-12-2016
this is a porportion, she is walking 3.9 every hour so that is 3.9/1 (1 representing the one hour) and she only walked .72 hours and we dont know far she walked for, so its x/.72 we cross multiply (not cross cancel) and we get 3.9×.72=x
we multiply those decimals and we get 2.808 miles she had walked. Hope that helps.
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