Step-by-step explanation:
Use the following information to answer the next 14 exercises: The mean age for all Foothill College students for a recent Fall term was 33.2. The population standard deviation has been pretty consistent at 15. Suppose that twenty-five Winter students were randomly selected. The mean age for the sample was 30.4. We are interested in the true mean age for Winter Foothill College students. Let X = the age of a Winter Foothill College student. n=
180 miles per hour. 45*4 to get the answer.<span />
Try looking at this and see if it helps http://openstudy.com/updates/580662f4e4b0d88e39fc9a0e
X=15
Collect like terms
8x-10x=x-45
Move the variable to the left
-2x=x-45
Collect like terms again
-2x-x=-45
Divide both sides by -3
-3x=-45
Answer is x= 15
Step-by-step explanation:
y=2x−3
y=x+2
y=-3
x=3/2
for the second line
y=2
x=-2
