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Harman [31]
3 years ago
13

The teacher tells the class the highest marks obtained by a student in her class is twice the lowest marks plus 7 . the highest

score is 87. what is the lowest score? (pls tell with example and formula) thanks! (i am in grade 7)!
Mathematics
1 answer:
Ilya [14]3 years ago
7 0

Answer:

40

Step-by-step explanation:

highest=2(lowest)+7

Replace the variables here:

87=2(lowest)+7

minus 7 on both sides

80=2(lowest)

divide both sides by 2

40=lowest

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