SOLUTION: James can store 8 GB of music on his phone. If a 3-min digital song requires 3.5 MB of storage space, what are the domain and range for the relationship between memory used and num

Algebra ->  Linear-equations -> SOLUTION: James can store 8 GB of music on his phone. If a 3-min digital song requires 3.5 MB of storage space, what are the domain and range for the relationship between memory used and num      Log On


   



Question 1106627: James can store 8 GB of music on his phone. If a 3-min digital song requires 3.5 MB of storage space, what are the domain and range for the relationship between memory used and number of songs that are each 3 min in length?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +y+ = GB of memory used
Let +x+ = number of songs lasting 3 min
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+y%280%29+=+0+
+y%281%29+=+3.5+
+m+=+%28+3.5+-+0+%29+%2F+%28+1+-+0+%29+
+m+=+3.5+
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+y+=+m%2Ax+%2B+b+
+b+=+0+
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+y+=+3.5x+
+x%5Bmax%5D+=+8%2F3.5+
+y%5Bmax%5D+=+3.5%2Ax%5Bmax%5D+
+y%5Bmax%5D+=+3.5%2A%28+8%2F3.5+%29+
+y%5Bmax%5D+=+8+
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The domain is +8%2F3.5+ which is +2+
because you can't record part of a 3 min song
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The range is +2%2A3.5+=+7+ MB for the same reason