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)!
1 answer:
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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