Answer:
  Total weight of the nuts bought by Dan =  5.4 kg
Explanation:
 Number of packets of nuts bought by Dan = 24
 Weight of each packet of nuts = 225g
  Total weight of the nuts bought by Dan = Number of packets of nuts bought by Dan * Weight of each packet of nuts
     Total weight of the nuts bought by Dan = 24 * 225 = 5400 g = 5400/1000 kg = 5.4 kg
     Total weight of the nuts bought by Dan =  5.4 kg
 
        
             
        
        
        
The answer is:  15 .
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{Note:  If this is a physics problem ; and the formula: "F = m*a" is for:  
    "Force = mass * acceleration" ;  be sure that the correct units are used!}.
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Explanation:
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 F = m * a ;
Given m = 5 ;
        
           a = 3 ;
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 F = 5 * 3 = 15 .
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30.	find the unit rate of 183 miles in 3 hours
IF you want me to show the unit rate in miles per hour here is the method to do that:
=> 183 miles / 3 hours = 61 miles per hour.
Thus the unit rate is 61 miles per hour or 61 miles /h
Now, if you want to see the unit rate in miles per minute then here is the method to do that:
=> 1 hour = 60 minutes
=> 3 hours = 180 minutes
=> 183 miles / 180 minutes = 1.02 miles per minute