Question

the teacher tells the class that the highest mark obtained by a student in her class is twice the lowest marks plus 7 the highest score is 87 what is the lowest score give explanation ​

Answer 1

let the highest mark b x and lowest mark be y then the equation will be

x = 2 Y + 7

87=2y+7.

87-7=2y

80=2y.

y=80/2

y=40..marks

Answer 2

Answer:

Answer is 40

Step-by-step explanation:

the highest score=87

lowest marks plus 7 =87-7= 80/2= 40

Therefore, the lowest mark is 40