Answer:
1500
Explanation:
225/3= 75
75 words per 1 min
75 x 20= 1500
1500 words in 20 minutes
So 225/3 min
or 225:3
so to find unit rate just divide
225/3=75
75 per minute
Now 75 words per minute times 20 minutes75*20=1500
So 1500 words in 20 minutes
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