exam Maths Puzzle Numerical Ability

square root 2x-1 +8=x

please help!!!

Read Solution (Total 0)

exam Other Question

Hi, I need help with the following equations: Thanks in advance!

1. 36 - 9y = 3y

2. -21 + 4p = 10 A teacher bases her class grade on four exams @100 pts. each. George has taken 3 exams with an average grade of 87%. What does he need on his fourth exam, to give him a final grade of 90%?
I have no idea. Please help!!