The teacher tells the class that the highest marks obtained by a student in her class is three times the lowest marks minus seven.If the highest marks are 86 , find the lowest marks.
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3
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Step-by-step explanation:
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Answered by
3
Answer:31
Step-by-step explanation:let H be highest ,L be lowest
According to teacher,
H=3L-7
86=3L-7
3L=93
L=93/3
L=31
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