Question

The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus seven . the highest score is 87 . what is lowest score? {let the lowest score (Unknow) be 'l'}​

Answer 1

Step-by-step explanation:

highest marks = 87

let the lowest marks be 'I'

then highest marks is 2x + 7

Lowest marks :-

2x + 7 = 87

2x = 87 - 7

2x = 80

x = 80 ÷ 2

x = 40

therefore the lowest marks is 40........

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Answer 2

$<marquee>✌40✌</marquee>$

Let the lowest score be 'l'.

Highest mark is 87.

By question,

2l+7=87

2l=87-7

2l=80

l=80/2

l=40.

Therefore lowest mark is 40.