document.write( "Question 1076900: On average, Sherry can travel four times as fast on cross-country skis as she can with snowshoes. To travel 24 km, she needs 6 h more if she is snowshoeing than if she is skiing. What is her average speed on crosscountry skis? \n" ); document.write( "
Algebra.Com's Answer #691510 by jorel1380(3719)\"\" \"About 
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Let n be Sherry's rate on snowshoes. Then her rate on skis is 4n. So:
\n" ); document.write( "24/n - 6=24/4n
\n" ); document.write( "96-24n=24
\n" ); document.write( "n=3
\n" ); document.write( "Sherry can travel 3km/h on snowshoes; and 12 km/h on skis. ☺☺☺☺
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