The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest mark plus 7. The highest score is 39. Find the lowest score.
Answers
Answered by
1
16
Step-by-step explanation:
1. 39 - 7 = 32
2. 32 ÷ 2 = 16
answer is 16
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Answered by
2
Answer:
16 marks.
Step-by-step explanation:
highest score = 2 × lowest score + 7
39 = 2 × x + 7 where x is the lowest score.
x = (39 - 7)/2 = 32/2 = 16 marks
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