by Joyce
(west monroe louisiana usa)
How much does it cost to copy 4,757 pages if the cost is as following?
Pages 1-25 cost 1.00 each.
Pages 26-500 cost 50 cents each.
Pages 501-finish cost 25 cents each
Solution
The key to this problem is to know how to find the number of pages.
How many pages from pages 1-25 ?
25 - 1 + 1 = 25
So from pages 1-25, there are 25 pages.
For these pages, the cost of each page is 1 dollars.
25 × 1 = 25 dollars
How many pages from pages 26-500 ?
500 - 26 + 1 = 475
So from pages 26-500, there are 475 pages.
For these pages, the cost of each page is 50 cents or 0.50 dollar.
475 × 0.50 = 237.5 dollars
How many pages from pages 501-4757 ?
4757 - 501 + 1 = 4257
So from pages 500-4757, there are 4257 pages.
For these pages, the cost of each page is 25 cents or 0.25 dollar.
4257 × 0.25 = 1064.25 dollars
The total cost is 25 + 237.5 + 1064.25 = 1326.75 dollars
Your grandma should just buy the book!
Jun 08, 17 01:52 PM
Learn quickly how to multiply using partial products
New math lessons
Your email is safe with us. We will only use it to inform you about new math lessons.
Jun 08, 17 01:52 PM
Learn quickly how to multiply using partial products