We can calcualte the number of blue hats by multiplying the total number of hats (n=48) by the proportion of blue hats (p=25%=0.25).
Then:
There are 12 blue hats.
Solve for u. -2 (2u- 4) + 2u= 4 (u+3)
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We can calcualte the number of blue hats by multiplying the total number of hats (n=48) by the proportion of blue hats (p=25%=0.25).
Then:
There are 12 blue hats.