Question 139993This question is from textbook an intermediate course in algebra
: a highschool counselor was interested in how many students are planning to volunteer for military servie after graduation. she randomly selectred and questioned 50 students and 15 answered that they planned to enlist after graduating. using statistical techniques, she found that she could predict the percentage P of students that would enlist in military service after graduation. her computations resulted in the inequality.
(the p and - 30 are in absolute value form)
{{P-30is less than or equal to 12.3}}}
determine the range for the percent of students who plan to enlist in the military services after grad. if 580 seniors graduate from this school, what is the range for the number of graduates planning to enlist?
This question is from textbook an intermediate course in algebra
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! P-30 is less than or equal to 12.3
----------------------------
|p-30| <= 12.3
-12.3 <= p-30 <= 12.3
17.7 <= p <= 42.3
-----------------------
if 580 seniors graduate from this school, what is the range for the number of graduates planning to enlist?
0.177*580 < number < 0.423*580
102.66 <= number <= 245
======================
Cheers,
Stan H.
|
|
|
