Answer:
x=6
Step-by-step explanation:
Let us expand the left side:
3x+12 = 2x+ 4x -6
Let us then simplify the right side:
3x+12=6x-6
We can now put the same variables on one side to isolate x:
12+6=6x-3x
18=3x
x=6
<em>I hope this helped! :)</em>
Answer:
yes
Step-by-step explanation:
Answer:
total question =90
she obtained 75% of first 40 questions
- No. of question she got correct in first 40 = 75% * 40 = 30
2. in order to get 80% out of 90,
the no. of questions got correct by Ama = 80% * 90 = 72
3. As she already got 30 c0rrect in first 40 questions, the number of question she needs correct for remaining 50 = (72-30) = 42
percentage = 42/50*100% = 84%
