Answer:
Step-by-step explanation:
Marked Price = 130% of cp
= 1.3 x 550
= 715
Selling price = 80% of mp
= 0.8 x 715
= 572
% change in price =
4%
The exact circumference of a circle with a diameter of 15 inches is 41.72 inches
Increased means to add.
Double means to multiply by 2.
The expression:
(12+4)x2
To solve:
Solve brackets first
(16) x 2
= 32
They could look at the weight(take into consideration if the book is paperback or hardcover), the length, and the size of the font to estimate the size of the book.
Answer:
The answer is below
Step-by-step explanation:
a) For a normal model the sample size has to be equal or greater than 30 so that it can be a normal distribution.
b) Given that:
μ = 11.2 minutes, σ = 4.8 minutes, n = 45
The z score determines how many standard deviations the raw score is above or below the mean. It is given by:
For x < 10 minutes
Therefore from the normal distribution table, P(x < 10) = P(z < -1.68) = 0.0465