document.write( "Question 507355: A high-speed train makes a 400-mile nonstop run between two major cities in 5 1/2 hours. The train travels 100 mi/hr in the country, but safety regulations require that it travel only 25 mi/hr when passing through smaller, intermediate cities. How many hours are spent traveling through the smaller cities?
\n" ); document.write( "My professor only wants us to make the equation to solve, but solving is not necessary. thanks. \n" ); document.write( "

Algebra.Com's Answer #340440 by lwsshak3(11628) $\"\"$ $\"About$

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A high-speed train makes a 400-mile nonstop run between two major cities in 5 1/2 hours. The train travels 100 mi/hr in the country, but safety regulations require that it travel only 25 mi/hr when passing through smaller, intermediate cities. How many hours are spent traveling through the smaller cities?
\n" ); document.write( "My professor only wants us to make the equation to solve, but solving is not necessary. thanks.
\n" ); document.write( "**
\n" ); document.write( "let x=distance traveling thru small cities
\n" ); document.write( "400-x=distance traveling in the country
\n" ); document.write( "..
\n" ); document.write( "Travel time=distance/speed
\n" ); document.write( "(x/25)+(400-x)/100=5.5
\n" ); document.write( "after solving for x,
\n" ); document.write( "hours are spent traveling through the smaller cities=x/25 \n" ); document.write( "

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