If he is biking at the same rate he will bike 28 miles after 4 hours.

I hope this helps c:
Answer: Option D
D. $108
Step-by-step explanation:
We must calculate the expected cost per patient to use treatment method B.
The expected cost for a discrete random variable x is:

Where
is the cost associated with the probability 
In this case, the random variable x is represented by the cost of each treatment.
For treatment B there is a possibility that antibiotic 2 works, in that case the cost x would be $ 100 and 
There is also the possibility that it does not work, in this case the cost x would be $180 and the probability 
The expected cost is:

Answer:
396 miles / 22 gallons = 18 miles per gallon
468 miles / 18 miles = 26 gallons of gasoline
What I did is I took the number of miles and divided it by the number of gallons to find how many gallons of gasoline were used per mile. Then I took that number of miles and divided 468 by it because that's the number of gallons we are trying to find. We ended up with 26 gallons of gasoline for 468 miles.
Part A:
(3x+5)+(3x+5)+(4x-3)+(4x-3)=p
3x+3x+4x+4x=14x
5+5+-3+-3=4
14x+4=p
-4 -4
14x=p-4
---- -----
14 14
x=1/4 p + -2/7
14(1/4 p +-2/7) +4=p
14(0.25p + 0.28571428571)+4=p
3.5 + 3.99999999994 + 4=p
11.4999999999=p
This may not help by no harm in trying.
Answer:
69.5 and 70.5
Step-by-step explanation:
consecutive numbers mean they are one up from the other
- e.g. 2 and 3,
- 15 and 16
if the first one is x, we can write the second consecutive number as x + 1
The info tells us the sum of these two numbers is 140, so we can write an equation and solve for x.
x + (x + 1) = 140
2x + 1 = 140
2x = 139
x = 139/2 = 69.5
(now we find the next number)
69.5 + 1 = 70.5