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Kevin sold a box of 28 books at a yard sale for a total of $54.64. He sold the paperback books for $1.68 each and sold the hardcover books for $2.44 each. Which system of equations can be used to determine
asked
Apr 16, 2020
Mathematics
college
1
answer
5
votes
32.9k
views
A skateboarder descends on a ramp from 172 feet to 67 feet in 15 seconds. What is the average change in height per second? Show work. Thank you.
asked
Jun 21, 2019
Mathematics
middle-school
1
answer
3
votes
156k
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