Answer:
f-1(x) = 1/3x would be the answer
Step-by-step explanation:
The expression for the cost of the ABC Book Club is 2<em>x </em>+ 40. The expression for the cost of the Easy Book Club is 3<em>x</em> + 35. To find when the total charge for both book clubs is equal, the two expressions must equal each other. (<em>x </em>= the number of books read)
2<em>x </em>+ 40 = 3<em>x</em> + 35
Subtract 35 from both sides.
2<em>x </em>+ 5 = 3x
Subtract 2<em>x </em>from both sides.
5 = <em>x</em>
So, the total charge for each club is equal when 5 books are read.
Answer:
A. he sold the the car for 1350000
B. his cost price is 1500000
Step-by-step explanation:
A. 150000---> 10%
x-----> 90%
cross multiplication: x=150000×90/10=1350000
B. 10%( price) +90%(price)
1350000+150000=1500000
Answer:
a)
Students who are skipping class cannot be sampled
Students Who are on a school trip cannot be sampled
Students who are out sick cannot be sample
b)
Dropouts cannot be sampled
Home-schooled students cannot be sampled
Step-by-step explanation:
a)
The population members that might be omitted from sampling frame consists of students who are skipping class, students on a trip and students that are sick because population includes all the students in statistics class.
The dropouts are already out of population and home-schooled are also not a part of population and we are only interested in statistics class so, the students who are not taking the statistics class cannot represent the under coverage of sampling frame
b)
The under coverage sampling frame in this scenario represents by dropouts and home-schooled students because we are taking sampling frame by student roaster of high school.
The student who sick,on a trip and skip class can be found in student roaster so, they don't represent under coverage of sampling frame.
D is the answer i hope this helped yoh out
