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A metallurgist has one alloy containing 26% aluminum and another containing 60% aluminum. How many pounds of each alloy must he use to make 52 pounds of a third alloy containing 40% aluminum?
A packaging box has a length that is 5 more than width. The height is 10 more than length. Express in algebraic form the volume of the packaging box.
Bako is two times as old as he was five years ago. His mother was six times as he was then. His mother is thirty five years old now.
1. How old is Bako now. 2. How old was his mother when Bako was five years ago. 3. How old will Bako be when his mother is fifty years old. 4. How old was Bako's mother when he was born. 5. What is the difference between Bako's age and his mother's. |
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