Answer:2.7=n
Step-by-step explanation:
n+27=11n
Move the variable to one side so subtract n
27=10n
Divide by 10
2.7=n
I'm not sure if this what you were asking for
The sister catches up Jeff after 2 hours
Step-by-step explanation:
We can write Jeff's position and his sister position at time t using the following expressions:
- Jeff position:
![x_j(t) = 7 + 2.5 t](https://tex.z-dn.net/?f=x_j%28t%29%20%3D%207%20%2B%202.5%20t)
where:
7 is the initial position of Jeff when his sister sarts chasing him
2.5 is Jeff's velocity (in miles/hour), so its position increases by 2.5 miles for each hour
t is the time measured in hours
- Sister position:
![x_s(t) = 6t](https://tex.z-dn.net/?f=x_s%28t%29%20%3D%206t)
where
6 is the sister velocity (her position increases by 6 miles for every hour)
t is the time measured in hours
The sister catches up Jeff when the two positions are equal, so
![x_j(t) = x_s(t)\\7+2.5t=6t](https://tex.z-dn.net/?f=x_j%28t%29%20%3D%20x_s%28t%29%5C%5C7%2B2.5t%3D6t)
And solving for t,
![7+2.5t-2.5t=6t-2.5t\\7=3.5t\\t=\frac{7}{3.5}=2 h](https://tex.z-dn.net/?f=7%2B2.5t-2.5t%3D6t-2.5t%5C%5C7%3D3.5t%5C%5Ct%3D%5Cfrac%7B7%7D%7B3.5%7D%3D2%20h)
So, the sister catches Jeff after 2 hours.
Learn more about speed:
brainly.com/question/8893949
#LearnwithBrainly
Answer:
The apricots are less expensive per pound.
Step-by-step explanation:
Cost of 1 pound of almonds = 21.98/2
Cost of 2 pounds of almonds = $21.98
So then you have to do 21.98 - 21.98/2. Which equals $10.99
Cost of 1 pound of dried apricots = 26.25/3
Cost of 3 pounds of dried apricots = $26.25
So then you have to do $26.25 - 26.25/3 which = $17.5 then divide that by 2 which equals $8.75.
To find out how much less expensive you have to find the difference, so to do that you have to do $10.99 - $8.75 = $2.24 per pound less expensive.
3/16 as a decimal is 0.18
and 5/48 as a decimal is 0.10
SO
you have 0.10, 0.18, 0.75, and 0.5 so put that in order
Answer:
A
Step-by-step explanation:
b
b c
c d
d a
y esa ser la responsable respuesta