SOLUTION: 1. The readout on an epllact machine shows that a person burned 320 calories during a 20 minute workout. How many calories will he burn during a 40 minute workout? simplfy the a

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: 1. The readout on an epllact machine shows that a person burned 320 calories during a 20 minute workout. How many calories will he burn during a 40 minute workout? simplfy the a      Log On


   



Question 1003457: 1. The readout on an epllact machine shows that a person burned 320 calories during a 20 minute workout. How many calories will he burn during a 40 minute workout?
simplfy the answer pls

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
If calories are burned at the same rate, then we can look at the proportion
320%2F20+=+x%2F40
and if we double the time, we double the calories burned...or
640 calories