Find the solutions to x2 = 20.
2 answers:
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Answer:
0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 49 minutes
Standard Deviation, σ = 16 minutes
We are given that the distribution of time an individual reads is a bell shaped distribution that is a normal distribution.
Formula:
P(no more than 30 minutes)
Calculation the value from standard normal z table, we have,
0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.
Answer:
Cost price of each candy = $0.80, Selling price of each candy = $1.40
Step-by-step explanation:
Given:
Ramiro buys 50 packs of candy bars for $40 before a tax of 7.5%.
He sells each candy var for 175% of what he paid before tax.
Question asked:
How much does he buy each candy bar for ?
How much does he sell one for ?
Solution:
<u>By unitary method:</u>
Cost of 50 packs of candy bars = $40
Cost price of 1 pack of candy bars =
Cost price of each candy = $0.80
Thus, he buy each candy bar for $0.80
Now:-
As he sells each candy var for 175% of what he paid before tax:-
Selling price of each candy = 0.80 175%
=
Thus, he sell one candy for $1.40