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Fred completed 10 math problems. That is 40% of the number of math problems he has to do. How many math problems must he do?
asked
Mar 1, 2017
Mathematics
middle-school
2
answers
1
vote
208k
views
Five siblings have a combined age of 195 years. The oldest is 13 years older than the youngest, Marc. The middle child, Anne, is five years younger than Josie. The othe two siblings are 6 years apart.
asked
Jan 2, 2016
Mathematics
middle-school
2
answers
3
votes
61.5k
views
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