Mathematics

Mathematics, 23.09.2019 02:30, marissasabino111

If it takes 4 people 4 days to dig a hole, how long does it take 2 people to dig a half-hole

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Mathematics, 25.07.2019 21:00, Jstylez9712

Which situation could be modeled using a direct proportion? a) it takes 3 people 5 hours to dig a hole. bill wants to know how many people it will take to dig the same hole in 3 hours. b) sally uses 2 cups of sugar to make 4 dozen cookies. she needs to know how many cups to use if she wants to make 6 dozen cookies. c) in math class each group must complete 25 problems. group a has 4 members and it takes them 45 minutes. group b wants to know how long it will take them with 6 members. d) amy drove to new orleans from birmingham at an average of 60 mph, and it took her 5 hours. beth wants to know how long it will take her to make the same trip traveling 70 mph.

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Mathematics, 22.09.2019 14:20, Izzyfizzy

If it takes six men six days to dig six holes, how long will it take one man to dig half a hole?

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Mathematics, 15.10.2019 19:00, tiny2007

Acylindrical hole is drilled in a sphere x² + y² + z² = a² to make a bead. the hole is such that the center of the hole is drilled symmetrically through the center of the sphere. the width of the hole is determined so that when a string of length 2l (l > a) is passed through the hole, at least the half of the string remains out side the bead. what is the minimum width (diameter) of the hole that would allow this?

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If it takes 4 people 4 days to dig a hole, how long does it take 2 people to dig a half-hole...

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