document.write( "Question 1134108: Two boys with two-way radios that have a range of 2 miles leave camp and walk in opposite directions. If one boy walks 3mph and the other walks 4mph, how long will it take before they lose radio contact? \n" ); document.write( "
Algebra.Com's Answer #751404 by addingup(3677)\"\" \"About 
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3+4 = 7 they are moving away from each other at a combined speed of 7mph
\n" ); document.write( "2/7 = 0.285714 of an hour
\n" ); document.write( "An hour has 60 minutes, so:
\n" ); document.write( "0.285714 * 60 = 17 minutes
\n" ); document.write( "(you can work it further, you'd come up with 17 minutes and 8 secords)
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