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A copper pipe, used for plumbing from the water main to a house, is 4 meters long and has a circular cross-section 2.8 cm in diameter. There is a 2 cm diameter hole in the center of the cross-section for
asked
Jun 19, 2017
Mathematics
high-school
1
answer
3
votes
74.7k
views
Martin is saving for a gaming system. The total cost of the gaming system and three games is $325.49. About how much money should he save per week to purchase the gaming system and games in 10 weeks?
asked
Feb 23, 2017
Mathematics
high-school
1
answer
4
votes
144k
views
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