Homework Help: math

Posted by emily on Friday, April 2, 2010 at 10:14am.

you work at a grocery store. your hourly wage is greater after 6pm than it is during the day. one week you work 20 daytime hours and 12 evening hours and earn $280. another week you work 30 daytime hours and 12 evening hours and earn a total of %276. what is your daytime rate? what is your evening rate?

math - PsyDAG, Friday, April 2, 2010 at 10:45am
Let x = daytime rate and y = evening rate.

20x + 12y = 280

Therefore x = (280 - 12y)/20

30x + 12y = 276

Use the same procedure as indicated in your previous post.

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