document.write( "Question 912959: A student at college can take 1-credit, 2 credit, and 4-credit courses. Over two semesters, a student took a total of 10 courses and earned 32 credits toward graduation. The number of 2-credit courses he took was two-thirds the number of 4-credit courses he took. How many of each type of course did the student take over the two semesters? \n" ); document.write( "
Algebra.Com's Answer #554221 by richwmiller(17219)\"\" \"About 
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a+2b+4c=32,
\n" ); document.write( "a+b+c=10,
\n" ); document.write( "b+3c=22\r
\n" ); document.write( "\n" ); document.write( "b=2c/3
\n" ); document.write( "2c/3+3c=22
\n" ); document.write( "2c+9c=66
\n" ); document.write( "11c=66
\n" ); document.write( "c=6 4 credit
\n" ); document.write( "b=4 2 credit
\n" ); document.write( "a=0 1 credit
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