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A gym holds one 60 minute exercise class on Saturdays and several 45 minute classes during the week. Last week all of the classes lasted a total of 285 minutes. Write an equation you can use to find the
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A gym holds one 60 minute exercise class on Saturdays and several 45 minute classes during the week. Last week all of the classes lasted a total of 285 minutes. Write an equation you can use to find the number of weekday classes.

User Ashhar Hasan
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Take away the 60 minutes for Saturday: 225 minutes. In the week there were 225/45=5 classes.
The equation is no. of classes=(285-60)/45.
User Siamand
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