document.write( "Question 360590: I need help to set up a GPA equation please.
\n" ); document.write( "Richards GPA is 3.7 and he made the following statement recently. \" I have earned 110 credits from my college and I earned at least an A- in each case.\" An A is equivalent to 4.0 and and A- is equivalent to 3.67. How many of the credits were A and how many were A-?
\n" ); document.write( "Assume x= the number of credits A
\n" ); document.write( "and y = the number of credits A- \n" ); document.write( "
Algebra.Com's Answer #257292 by stanbon(75887)\"\" \"About 
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Richards GPA is 3.7 and he made the following statement recently. \" I have earned 110 credits from my college and I earned at least an A- in each case.\" An A is equivalent to 4.0 and and A- is equivalent to 3.67. How many of the credits were A and how many were A-?
\n" ); document.write( "Assume x= the number of credits A
\n" ); document.write( "and y = the number of credits A-
\n" ); document.write( "---------
\n" ); document.write( "Credits Equation: x + y = 110
\n" ); document.write( "Points Equation: 4x +3.67y = 3.7*110
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\n" ); document.write( "Multiply thru the credits equation by 4 to get:
\n" ); document.write( "4x + 4y = 440
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\n" ); document.write( "Subtract the Points Equation and solve for \"y\":
\n" ); document.write( "0.33y = 33
\n" ); document.write( "y = 100 (# of A- credits)
\n" ); document.write( "x = 10 (# of A credits)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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