You want to find out whether caffeine mitigates the effect of alcohol on reaction time. To study this, you administer to your subjects a drink that is equivalent to three 12-ounce beers, followed by the equivalent of two cups of coffee. Then your subjects complete a simulated driving task in which they must follow a fixed speed limit while driving on a straight road. Wind periodically and randomly pushes the simulated vehicle right, left, or not at all. Speed is measured in miles per hour above or below the 60-mph speed limit, with 1 mph being the smallest unit on the scale. Suppose the first subject scores 9 mph. Determine the real limits of 9. When measuring weight on a scale that is accurate to the nearest 0.2 pound, what are the real limits for the weight of 120 pounds? When measuring weight on a scale that is accurate to the nearest 0.5 pound, what are the real/limits for the we. ght of 187 pounds?

First Question

lower limit of 9 mph  

upper  limit of 9 mph

Second Question

lower limit of 120 pounds is  

upper limit of 120 pounds is  

Third  Question

lower limit of 187 pounds is  

upper limit of 187 pounds is    

Step-by-step explanation:

From the question we are told that

  The amount of beer administered is  three 12-ounce beers

  The  amount of coffee administered is  two cups of coffee

  The  speed limit is   60-mph

  The smallest unit of scale is  1 mph

  The first subject scores 9 mph

Generally given that the smallest unit of scale is  1 mph then the deviation of  9 mph will be by

Hence the lower limit of 9 mph is

And  the upper  limit of 9 mph is

Generally given that the measuring weight on a scale that is accurate to the nearest 0.2 pound then 120 pounds will deviate by  

Hence the lower limit of 120 pounds is

And  the upper  limit of 120 pounds is

Generally given that the measuring weight on a scale that is accurate to the nearest 0.5 pound then  187 pounds will deviate by  

Hence the lower limit of 120 pounds is

And  the upper  limit of 120 pounds is

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

found it xd it ok yt