In a test, correct answers carry +3 marks and wrong answers carry -1 marks. Ramesh answered all the questions. He scored 79 marks, though he maked 5 mistakes. Find the number of correct answers?

Step-by-step explanation:

let wrong answers be y

let right answer be x

3x-1y=79

find another equation

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5