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Marcus spent $3.2to his car wash if one quarter operates 60 seconds . how long did it take him to wash his car

Marcus spent 3.2to his car wash if one quarter operates 60 seconds . how long did it take him to wash his car class=

Verified Answer :

768 seconds, or 12.8 minutes.  
3.2 divided by .25 (cost of a quarter)= 12.8 which means that he spent 12.8 quarters during the wash.  Each quarter is 60 seconds, so 12.8 times 60=768 seconds.

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