Answer:
The driving time at 54 miles per hour is 37.04 hours.
The driving time is at 75 miles per hour is 26.67 hours.
The gasoline cost at 54 miles per hour is $201.82
The gasoline cost at 75 miles per hour is $302.73
Step-by-step explanation:
Suppose your car averages 33 miles per gallon on the highway if your average speed is 54 miles per hour,
and it averages 22 miles per gallon on the highway if your average speed is 75 miles per hour.
The driving time for a 2000-mile trip if you drive at an average speed of 54 miles per hour = Distance / Speed = 2000 / 54 = 37.04 hours.
The driving time for a 2000-mile trip if you drive at an average speed of 75 miles per hour = Distance / Speed = 2000 / 75 = 26.67 hours.
Assume a gasoline price of $3.33 per gallon.
The gasoline cost for a 2000-mile trip if you drive at an average speed of 54 miles per hour = (Distance / Gas mileage) * Cost = (2000/33)*3.33 = $201.82
The gasoline cost for a 2000-mile trip if you drive at an average speed of 75 miles per hour = (Distance / Gas mileage) * Cost = (2000/22)*3.33 = $302.73
Answer:
![\large\boxed{\sf \ \ \ 404,699 \ \ \ }](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5Csf%20%5C%20%5C%20%5C%20%20%20404%2C699%20%5C%20%5C%20%5C%20%7D)
Step-by-step explanation:
Hello,
At the beginning the population is 240,000
After 1 year the population will be
240,000*(1+7.75%)=240,000*1.0775
After n years the population will be
![240,000\cdot1.0775^n](https://tex.z-dn.net/?f=240%2C000%5Ccdot1.0775%5En)
So after 7 years the population will be
![240,000\cdot1.0775^7=404699.058...](https://tex.z-dn.net/?f=240%2C000%5Ccdot1.0775%5E7%3D404699.058...)
So rounded to the nearest whole number gives 404,699
Hope this helps
<span>(a+c)/(b+d) = (a-c) / (b-d)
cross multiply
ab -ad +bc -cd = ab +ad -bc -cd
cancelling ab and -cd, on both sides of eqn
combining like terms
-2ad = -2bc
dividing both sides by (-2)
ad =bc
dividing both sides by (bd)
a/b = c/d,,,,,,,,,as required</span>
Y=9.25 because inorder to solve this we need to first take 5*.3 which equals 1.5 now that we have this we can move on we now have the equation 1.5 + 2y = 20 so now we need to continue working on getting y by it self so we subtract 1.5 from each side and then that leaves us with 2y=18.5 now we divide by 2 which leaves us with y=9.25 enjoy=)