Answer:
And we can find the nnumber of deviations from the mean for each limit given:


So we are 3 deviation from the mean and using the empirical rule we know that within 3 deviations from the mean we have 99.7% of the values
Step-by-step explanation:
Let X the random variable that represent the amount of time it takes him to arrive, and for this case we know the distribution for X is given by:
Where
and
We want to find this probability:
And we can use the z score formula given by:
And we can find the nnumber of deviations from the mean for each limit given:


So we are 3 deviation from the mean and using the empirical rule we know that within 3 deviations from the mean we have 99.7% of the values
For number 2 problem:
10x=5y
15x=7.5y
20x=10y
For problem3:
3x=1.5y
4x=2y
5x=2.5y
Solutions
Factor <span>8x</span>²<span>−27
</span><span>=<span>8x</span></span>²<span>−<span>27
You can not factor </span></span><span>8<span>x</span></span>²−<span>27</span>
Answer:
Step-by-step explanation:
<u>The difference in interest amount is:</u>
- $500*4*(4.5 - 2.5)/100 = $40
Jason received $40 more than Alistair
Hey there!!
Let us take the cost of the belt as ' x '
Then, the cost of the shoes would be ' 7x '
Cost of the shirt would be ' x + 45 '
Cost of belt + cost of shoes = 152
x + 7x = 152
8x = 152
x = 152 / 8
x = 19
Cost of belt = $19
cost of shirt = 19 + 45
= $64
Hope helps!