document.write( "Question 485464: The side of one square is 3 cm longer than the side of a second square. If the combined area is 65 cm^2, find the lengths of the sides of both squares. \n" ); document.write( "

Algebra.Com's Answer #332051 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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Of the final grades received by the students in a certain math course,
\n" ); document.write( "1/5 are A ’s, 1/4 are B ’s, 1/2 are C ’s and the remaining 10 grades are D ’s.
\n" ); document.write( " What is the number of students in the course?
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\n" ); document.write( "Let x = total number of students
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\n" ); document.write( "x = $\"1%2F5\"$ x + $\"1%2F4\"$ a + $\"1%2F2\"$ x + 10
\n" ); document.write( "Multiply by 20 to clear the denominator
\n" ); document.write( "20x = 20* $\"1%2F5\"$ x + 20* $\"1%2F4\"$ a + 20* $\"1%2F2\"$ x + 20(10)
\n" ); document.write( "Cancel the denominators and we have
\n" ); document.write( "20x = 4x + 5x + 10x + 200
\n" ); document.write( "20x = 19x + 200
\n" ); document.write( "20x - 19x = 200
\n" ); document.write( "x = 200 students
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\n" ); document.write( "You can check the solution, replace x with 200 in the original equation \n" ); document.write( "

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