document.write( "Question 341727: Suppose that you are taking a course that has 4 tests. The first three tests are for 100 points each and the fourth test is for 200 points. To get an B in the course, you must have an average of at least 80 percent on the 4 tests. Your scores on the first 3 tests were 77, 80, and 80. What is the minimum score you need on the fourth test to get an B for the course? \n" ); document.write( "
Algebra.Com's Answer #244659 by stanbon(75887)\"\" \"About 
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Suppose that you are taking a course that has 4 tests. The first three tests are for 100 points each and the fourth test is for 200 points. To get an B in the course, you must have an average of at least 80 percent on the 4 tests. Your scores on the first 3 tests were 77, 80, and 80. What is the minimum score you need on the fourth test to get an B for the course?
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\n" ); document.write( "500 points are offered in the 4 tests
\n" ); document.write( "0.8*500 = 400\r
\n" ); document.write( "\n" ); document.write( "Equation:
\n" ); document.write( "77+80+80+2x >=400
\n" ); document.write( "237+2x >= 400
\n" ); document.write( "2x >= 163
\n" ); document.write( "x >= 81.5 (score needed on the 4th test)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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