Answer: -8.8n + 7.8
Step-by-step explanation:
2.8 - 5.8n - 3n + 5
Add -5.8n and -3n to get -8.8n
Add 2.8 and 5 together to get 7.8
Answer:
35 people did no travel by any of those modes of transportation.
Step-by-step explanation:
Reviewing the groups described, we can see there are 170 that traveled by either <u>plane or train</u> and 50 traveled by bus, but not <u>plane or train</u>.
This means that the 50 people that traveled by bus are not included in the group of 170 that used either plane or train.
Since those two groups include people that used bus (50 people) and people that used either plane or train (170 people), the union of these two sets include all the people that used at least one of the tree modes of transportation mentioned (bus, plane or train).
The result of the union between these two sets is 50+170=220 people which travel by at least one of those modes of transportation.
Since the total number of surveyed adults is 255, the number of people that did not travel by any of these modes of transportations is 255-220=35 people.
Answer:
2
Step-by-step explanation:
okay so imagine this, you have one cookie and you get another cookie. how many cookies do you have now? 2
4x + 160y = 120
and
1x + 240y = 80
that will be be the equations. if we multiply the bottom equation by 4 we get:
4x + 960y = 320
now subtract one equation from another:
4x + 160y = 120
-(4x + 960y = 320)
and get:
-800y = -200
y = $0.25
now plug this into one equation
x +240(.25) = 80
x + 60 = 80
x = $20
so $20 per day and $0.25 per mile
Answer
3.027 × 10^7
I'm not the best at explaining but here is my attempt
You start with 30270000 you write the first number which is 3 then put a decimal and then put the rest of the numbers until the rest of the numbers are zeros..
3.027
Then put a × 10^
3.027 × 10^
And then the original number's digit count minus 1 is the number so 0270000 is 7 digits so the answer is
3.027 × 10^7
Sorry i'm horrible at explaining
