The denominator is the same, so just compare the numerator. 3 is greater than 2, so 2/6 <3/6 :)
X represents nickels
y represents dimes
x+y=29
5x+10y=210
multiply the first equation by -5 (elimination method)
-5x-5y=-145
then add the two equations together
5y=65
divide 5 from both sides
y=13
13 dimes
2.3 times (2.3- 4.3) + 4.3( 4.3-2.3)
now it's simpler, try your best!
Answer:
And using the z score given by:
Where:
If we find the z score for we got:
So we want to find this probability:
And using the complement rule and the normal standard distribution and excel we got:
Step-by-step explanation:
For this case we have the proportion of interest given . And we have a sample size selected n = 474
The distribution of is given by:
We want to find this probability:
And using the z score given by:
Where:
If we find the z score for we got:
So we want to find this probability:
And using the complement rule and the normal standard distribution and excel we got:
Hey! :)
Let us make these number be x and y.
x + y = 54
x - y = 26
Now, add these equations to get the following:
2x = 54 + 26 = 80
2x = 80
x = 80/2 = 40
Now, x + y = 54 meaning 40 + y = 54.
Therefore y = 54 - 40 = 14.
Have a great rest of your day :)