Question

On the critical portion of the SAT, the raw score is calculated as follows: 1 point is awarded for each correct answer, and 1/4 point is deducted for each wrong answer. If Ellen answer all q questions on the test and earned a raw score of 10, how many questions did she answer correctly?<-- LOL @ the question

Answer choices:
(A) q-10
(B) q/5
(C) q/5-10
(D) q-10/g
(E) 8+q/5

Answer 1

q = total attempt
x = right attempt
so, for right answer 1 mark and wrong answer, -1/4 marks..

1(x) - 1/4 (q-x) = 10..
can u solve for x ??

Answer 2

i think so. hold on a second

Answer 3

x=q/5+8

Answer 4

right?

Answer 5

1(x) - 1/4 (q-x) = 10
4x -q + x = 40
5x = 40 + q

x = 8 + q/5...

perfect ... :) So option 5...

Answer 6

yay! E.. Thank you so much!

Answer 7

anytime... :)