To make concrete, 2 parts cement is mixed with every 5 parts of sand. write down the ratio of cement to sand.
1 answer:
You might be interested in
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:
a)The total amount of her weekly stock sales = $7,200
b) The total amount of her yearly stock sales = $350,000
Step-by-step explanation:
(a) Let us assume that the total a mount of her sales in a week = $m
Commission earned in a week = $288
Now, 4 % of her total sales = $288
or, 4% of ($m) = $288
⇒
or,
⇒ m = $7,200
Hence, the total amount of her weekly stock sales = $7,200
b) Let us assume that the total amount of her sales in a year = $k
The total amount of commission earned = $14,000
Now, 4 % of her total sales = $14,000
or, 4% of ($k) = $14,000
⇒
or,
⇒ k = $350,000
Hence, the total amount of her yearly stock sales = $350,000