document.write( "Question 168697: an average score of 90 or above in an english course receives an A grade. a student has grades of 85, 88, 90, and 98 on four tests. find the range of scores on the fifth test that will give the student an A grade \n" ); document.write( "

Algebra.Com's Answer #124348 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!
We'll go to the Least score which is \"90\" to get \"A\" Grade
\n" ); document.write( " $\"Average=90=A\"$ -----> $\"system%28G1=85%2CG2=88%2CG3=90%2CG4=98%2CG5=G5%29\"$
\n" ); document.write( " $\"%28G%5B1%5D%2BG%5B2%5D%2BG%5B3%5D%2BG%5B4%5D%2BG%5B5%5D%29%2F5=90\"$ , EQN 1
\n" ); document.write( " $\"%2885%2B88%2B90%2B98%2BG%5B5%5D%29%2F5=90\"$ , cross multiply
\n" ); document.write( " $\"361%2BG%5B5%5D=90%2A5=450\"$
\n" ); document.write( " $\"G%5B5%5D=450-361\"$
\n" ); document.write( " $\"highlight%28G%5B5%5D=89%29\"$ -----> Final score to have \"A\" Grade
\n" ); document.write( "Check it out in EQN 1:
\n" ); document.write( " $\"%2885%2B88%2B90%2B98%2Bhighlight%2889%29%29%2F5=90\"$
\n" ); document.write( " $\"450%2F5=90\"$
\n" ); document.write( " $\"90=90\"$
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo
\n" ); document.write( " \n" ); document.write( "

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