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

Question

3 years ago

13

score is 87. what is the lowest score? (pls tell with example and formula) thanks! (i am in grade 7)!

1 answer:

Ilya [14] · Answer 1 · 2022-03-30T23:31:04+03:00

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