Question

The teacher tells the class that the highest mark obtained by a student in her class is twice the lowest mark plus 7. The highest score is 87. What is the lowest score?

Answer 1

Answer:

let lowest score be x

twice of x= highest score

2x+7=highest score

2x+7=87

2x=80

x = 40

Answer 2

Answer:

lowest marks =40

Step-by-step explanation:

Let's assume the lowest mark is

′

x

′

.

twice the lowest mark will be 2x

given that twice the lowest marks plus seven is highest mark.

=> 2x+7=87

=>2x=80

=>x=40

Hence the lowestmark is 40.

Please mark my answer as brainliest