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There were 20 umbrellas in the box. Five of the umbrellas as are blue. Half of the umbrellas are red. The rest of the umbrellas are black. How many umbrellas are black?

 
 May 4, 2021
 #1
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20 umbrellas

20/2 = 10 red

5 blue 

20 - 10 - 5 = 5 black

:))

 

=^._.^=

 
 May 4, 2021

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