<p>On an assembly line, machine X pours dog food into a bag and machine Y seals the bag only if the weight of the food in the bag is between 39.9 and 40.1 pounds. If machine Y seals a bag containing p pounds, which of the following could be used to determine all possible values of p?</p>
<p>(A) |P-40|=.1
(B) |p+40|=.1
(C) |P-40|<.1
(D) |P+40|<.1
(E) |P-40|>.1</p>
<p>I believe the answer is e. Simply because it’s the one that makes sense when you put numbers into it. If the numbers aren’t between 39.9 and 40, then it will be false, if between the range then it’ll be true.please correct me if I’m wrong</p>
<p>For choice (E) if you plug in 50 for P you end up getting 10>.1</p>
<p>I think it’s choice (C)</p>
<p>^^ SATmathhelp, you are right, the answer is C.</p>
<p>just solve of P, and you would get</p>
<p>39.9 < P < 40.1</p>
<p>You could even just try using 40 and plugging that into every equation and see that only C holds true.</p>
<p>to people who think E,</p>
<p>you would get P<39.9 or P> 40.1 … try it.</p>