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soldi70 [24.7K]
3 years ago
5

David ate 80 blueberries in one hour. How many did he eat in fifteen minutes?

Mathematics
2 answers:
Firlakuza [10]3 years ago
8 0

All we have to do is divide how many blueberries he ate in an hour (80) by how many times 15 minutes is in 1 hour (4)

80 ÷ 4 = 20

We can check our work by multiplying 20 by 4

20 x 4 = 80

Therefore, David ate 20 blueberries in 15 minutes


Hope this helps you!

Always remember you are a Work Of Art!

- Nicole :) <3

Ray Of Light [21]3 years ago
6 0
David ate 20 blueberries per hour because there is 60 minutes in an hour. and 60 divided by 4 is 15. So do 80 divided by 4 is 20.
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Step-by-step explanation:  The prime factorization of  4320   is

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To be able to remove something from under the radical, there have to be  2  instances of it (because we are taking a square i.e. second root).

√ 4320   =  √ 2•2•2•2•2•3•3•3•5   =2•2•3•√ 30   =

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So now we are looking at:

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w =(-40+√4320)/-34=(20-6√ 30 )/17= -0.757

or:

w =(-40-√4320)/-34=(20+6√ 30 )/17= 3.110

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