October 9, 2015

Homework Help: ALGEBRA 1

Posted by Kayla on Monday, October 7, 2013 at 8:16pm.

You practice playing your guitar every day. You spend 15 minutes practicing chords and the rest of the time practicing a new song. So the total number of minutes y you practice for the week is given by y=7(15+x), where x is the number of minutes you spend on practicing a new song.
a. Solve the equation for x.

b. How many minutes did you spend on a new song if you practiced 210 minutes last week? 245 minutes? 315 minutes?

is a: x=1/7y-15

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