number of books on first shelf ---- x
number of books on 2nd shelf ---- 55-x
after re-location
first shelf --- (55-x)/2 + x
2nd shelf ---- (55-x)/2
(55-x)/2 + x = 4(55-x)/2
times 2
55-x + 2x = 220 - 4x
5x = 165
x = 33
before the shift:
1st shelf ---- 33 books
2nd shelf ---- 22 books
Two shelves contain 55 books. If half of the books from the second shelf were relocated to the first shelf, then the first shelf would contain 4 times more books than the second one. How many books are there on each shelf?
2 answers
Annie, do u do RSM 7th cuz ur dumb for that