SOLUTION: Wanda has read 80 of the 118 pages in a book. It took her 2 hours, 40 min. It is now 8:30 pm. When will she finish?
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Question 134470: Wanda has read 80 of the 118 pages in a book. It took her 2 hours, 40 min. It is now 8:30 pm. When will she finish? Found 2 solutions by nycsharkman, ankor@dixie-net.com:Answer by nycsharkman(136) (Show Source):
You can put this solution on YOUR website! Wanda has read 80 of the 118 pages in a book. It took her 2 hours, 40 min. It is now 8:30 pm. When will she finish?
40 minutes is 2/3 of one hour.
We can say that she read 80 pages in 8/3 hours.
She needs to read 118 - 80 or 38 pages.
80 pages/38 pages = 8/3 hours/x hours
Find x and then add the hours to 8:30pm to find out when she will finish reading the book.
80x = 38(8/3)
80x = 304/3
x = 304/3 divided by 80
x = 19/15 hours
x = 1 hour and 27 minutes
Then:
8:30pm + 1 hour and 27 minutes = 9:57pm
You can put this solution on YOUR website! Wanda has read 80 of the 118 pages in a book. It took her 2 hours, 40 min. It is now 8:30 pm. When will she finish?
:
Convert 2 hr 40 min to minutes. 2*60 + 40 = 160 min
She has 118 - 80 = 38 pages left to read
:
Use a ratio equation:
80x = 38 * 160
x =
x = 76 min to read 38 pages: 1 hr 16 min
:
8:30 + 1:16 = 9:46 pm she should finish.