document.write( "Question 294276: two cars leave the same day one heading north and the other heading west. the first car travels at 25km/hr. in 1 hour the cars are 65km apart. how fast is the second car moving
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Algebra.Com's Answer #212258 by dabanfield(803)![]() ![]() ![]() You can put this solution on YOUR website! two cars leave the same day one heading north and the other heading west. the first car travels at 25km/hr. in 1 hour the cars are 65km apart. how fast is the second car moving\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The distances travelled by the two cars form a right triangle. After one hour the hypotenuse is 65 and one leg is 25. If the distance travelled by the second car is x then, by the Pythagorean Theorem, we have:\r \n" ); document.write( "\n" ); document.write( "x^2 + 25^2 = 65^2 \n" ); document.write( "x^2 = 65^2 - 25^2 \n" ); document.write( "x^2 = 4225 - 625 \n" ); document.write( "x^2 = 3600 \n" ); document.write( "x = sqrt(3600) \n" ); document.write( "x = 60 \n" ); document.write( " |