document.write( "Question 141558This question is from textbook Algebra 1
\n" ); document.write( ": 1) At noon Joyce drove to the lake at 30 miles per hour, but she made the long walk back home at 4 miles per hour. How long did she walk if she was gone for 17 hours? How far did she walk? Begin by drawing a diagram of distances traveled and writing the distances equations. \r
\n" ); document.write( "\n" ); document.write( "2) Nine sixteenths of the girls belived that saltations was salubrious. If the other 700 girls were undecided, how many girls had made their minds concerning this topic?
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Algebra.Com's Answer #103223 by ankor@dixie-net.com(22740)\"\" \"About 
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1) At noon Joyce drove to the lake at 30 miles per hour, but she made the long walk back home at 4 miles per hour. How long did she walk if she was gone for 17 hours? How far did she walk? Begin by drawing a diagram of distances traveled and writing the distances equations.
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\n" ); document.write( "Let d = distance to the lake
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\n" ); document.write( "*>------------------->---d-@-30-mph------------------*lake
\n" ); document.write( "*-----------d-@-4-mph-------<-----------------------<*lake
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\n" ); document.write( "Write a time equation: Time = \"dist%2Fspeed\"; find d
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\n" ); document.write( "Drive time + walk time = 17 hrs
\n" ); document.write( "\"d%2F30\" + \"d%2F4\" = 17
\n" ); document.write( "Multiply equation by 30 to get rid of the denominators:
\n" ); document.write( "2d + 15d = 17(60)
\n" ); document.write( "17d = 17(60)
\n" ); document.write( "d = 60 mi
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\n" ); document.write( "Check solution by finding the times
\n" ); document.write( "Drive; 60/30 = 2 hrs
\n" ); document.write( "Walk:: 60/4 = 15 hrs
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\n" ); document.write( "total hours = 17 hrs
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\n" ); document.write( "2) Nine sixteenths of the girls belived that saltations was salubrious. If the other 700 girls were undecided, how many girls had made their minds concerning this topic?
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\n" ); document.write( "Let x = the total number of girls
\n" ); document.write( "The other 700 would be 7/16
\n" ); document.write( "\"7%2F16\"x = 700
\n" ); document.write( "7x = 700 * 16
\n" ); document.write( "7x = 11200
\n" ); document.write( "x = \"11200%2F7\"
\n" ); document.write( "x = 1600 total girls
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\n" ); document.write( "\"9%2F16\"*1600 = 900 made up their minds
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