document.write( "Question 91692: Hello, \r
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\n" ); document.write( "\n" ); document.write( "I need help defining a variable, writing and solving this inequality:\r
\n" ); document.write( "\n" ); document.write( "Ray had scores of 75,82,94, and 77 on his first four science tests. What must he score on the next test to have an average of at least 85?\r
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Algebra.Com's Answer #66584 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
need help defining a variable, writing and solving this inequality:
\n" ); document.write( "Ray had scores of 75,82,94, and 77 on his first four science tests. What must he score on the next test to have an average of at least 85?
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\n" ); document.write( "Let x = the score required on the 5th test to have at least an 85 average:
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\n" ); document.write( "\"%28%28x+%2B+75+%2B+82+%2B+94+%2B+77+%29%29%2F5\" => 85
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\n" ); document.write( "\"%28%28x+%2B+328%29%29%2F5\" => 85
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\n" ); document.write( "Multiply equation by 5 and you have:
\n" ); document.write( "x + 328 => 5(85)
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\n" ); document.write( "x + 328 => 425
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\n" ); document.write( "x => 425 - 328
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\n" ); document.write( "x => 97 required
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\n" ); document.write( "Check on calc: (97+75+82+94+77)/5 = 85
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