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On three tests you earned grades of 88%,94% and 90%. Each test was worth 150 points. The final exam is worth 250 pts. How many...Asked by Brandon
on 3 tests you earned grades of 88%,94%,and 90%. Each test worth 150 points. The finalo exam is worth 250 points. How many points do you need on the final exam to earn 93% of the total points on tests? What percent do you need on the final?
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Answered by
Mac
. 88(150)+.94(150)+.90(150)+x(250)=.93(700)
132+141+135+x(250)=651
408+x(250)=651
x(250)=243
x=.972
Or you need 243points to earn a 97.2 percent
132+141+135+x(250)=651
408+x(250)=651
x(250)=243
x=.972
Or you need 243points to earn a 97.2 percent
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