Solution: Let x be the height of a student in Marta's class.
The mean height of 18 students in Marta's class is 60 inches
We know that:




Therefore, the total measure of all 18 student's heights is 1080 inches
2x-10= 28
+10 +10
2x= 28
x=14
It would be 11w^(2) -242w

this is the correct way to solve these types of exercises
then we will try to do the same where a is (6+9x) and b is 24

and solve the right inequality for x

subtract 6 for all expression

now divide on 9

ok, this means that the x values will be from -10/3 to 2 including these
Graph
solution is the red zone
Answer:
True
Step-by-step explanation:
The estimate of the true proportion of park users who are residents outside of the city is the number of park users in the sample who are residents outside of the city divided by the size of the sample.
In this problem:
26 park users resided outside the city, in a sample of 200 park users.
So
p = 26/200 = 0.13
So the answer is True