90% in a fraction is the same as 90/100 simplified, is 9/10.
Hope this helps
4(2k - 3) + 1 = 8k - 11
8k - 12 + 1 = 8k - 11
8k - 11 = 8k - 11
So, these two equations equal to the same thing.
Glad I could help and gave a fantastic day!

1 hour = 6 pages
So,
5 hours = 6×5
ㅤㅤㅤㅤ= 30 pages
therefore, She writes 30 pages in 5 hours.
Answer: 20
Step-by-step explanation: the equation would be 15 / 3/4, or 15/1 / 3/4 (the / meaning divide). You would divide it by multiplying the reciprocal of 3/4 (4/3) and 15(/1) , which you would get 20.