Answer:
x=2/15
Step-by-step explanation:
1/5+x+2/3=1
3/15+x+10/15=15/15
13/15+x=15/15
x=2/15
Answer:
2.55
Step-by-step explanation:
Answer:

Where
represent the total pressure and
the fraction of carbon dioxide is 0.46 and we can find the total pressure with this formula:

And replacing we got:

Step-by-step explanation:
For this case the partial presure of carbon dioxide is given by:

Where
represent the total pressure and
the fraction of carbon dioxide is 0.46 and we can find the total pressure with this formula:

And replacing we got:

Answer:
A. Diego's answer is not correct.
B. 0.00375
Step-by-step explanation:
a. As I counted the thickness of the paper I realized that 0.015 inches is way too think because if we stacked 500 of those it would be 7.5 inches tall.
b. 1.875 ÷ 500 = 0.00375. so that is your answer
1. You already did it.
2. Table
3. t (years since 1990)
4. n (# of cigarettes sold)
5. (t, n)
6. You can see the distribution of the data pretty neatly. There are also many more advantages including it's easier to calculate standard deviation, easier to see the mean, mode and median, and it's also much easier to just tell the extrema of the dataset by just looking at the scattergram.