Doug earns $10.50 per hour working at a restaurant. On Friday, he spent 1.75 hours cleaning, 2.33 hours doing paperwork and 1 hour and 25 minutes serving costumers. What were Doug's earnings?

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Answer 1 · 2017-11-13T23:41:07

#$57.75#

Change #1# hour and #25# minutes to the correct notation:

#"1 hour and 25 minutes = 60 minutes + 25 minutes = 85 minutes"#

Do

#85/60 = x/100#

So

#x = (85*100) / 60#

#x = "141.67 minutes" -> "1.42 hours"#

Add the total number of hours together:

#"1.75 hours + 2.33 hours + 1.42 hours = 5.5 hours"#

Doug earns #$10.50# per hour, so for #5.5# hours, multiply #10.50# by #5.5#:

#$10.50 * 5.5 = $57.75#