document.write( "Question 890849: On a road map with a scale of 1/4 inch per 10 miles, the highway from
\n" ); document.write( "Waukee to Winterset is 1 3/8 inches long. How many miles long is
\n" ); document.write( "this highway? \n" ); document.write( "

Algebra.Com's Answer #539323 by Lapric(19) $\"\"$ $\"About$

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On a road map with a scale of 1/4 inch per 10 miles, the highway from
\n" ); document.write( "Waukee to Winterset is 1 3/8 inches long. How many miles long is
\n" ); document.write( "this highway?\r
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\n" ); document.write( "\n" ); document.write( "This problem can be solved using ratios.
\n" ); document.write( "So we set up the ratios:
\n" ); document.write( " $\"+%28%281%2F4%29inch%29+%2F+10+miles+\"$ = $\"+%281%2A%283%2F8%29%29+inches+%2F+x+miles+\"$ \r
\n" ); document.write( "\n" ); document.write( "Cross multiply: \r
\n" ); document.write( "\n" ); document.write( "(1 3/8)*(10) = (1/4)*(x)\r
\n" ); document.write( "\n" ); document.write( "I'm going to change this to decimals so that it's easier to put into a calculator. \r
\n" ); document.write( "\n" ); document.write( "(1.375)(10)=(0.25)(x)\r
\n" ); document.write( "\n" ); document.write( "13.75=0.25x\r
\n" ); document.write( "\n" ); document.write( "Divide it all by 0.25\r
\n" ); document.write( "\n" ); document.write( "x=55\r
\n" ); document.write( "\n" ); document.write( "The highway between Waukee to Winterset is 55 miles. \n" ); document.write( "

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