Question

If gas costs $3.65 per gallon at a local service station, how many cubic feet of gas can a customer buy with $40 ?

Answer 1

40/3.65=10.95 gallons

Answer 2

how far can the customer drive if the car gets 4 miles per cubic foot of gas?

Answer 3

4 miles per gallon??? Horrible mileage.....

Answer 4

the first answer was rejected, the 10.95

Answer 5

they want the answer in ft^3, i guess

Answer 6

weird.... I was just thinking of it like in the real world.
I have $40 dollars and I can only by approx 10.9 gallons at 3.65
maybe you need to input it as 10.9 (do you have instructions on what place to round to?)

Answer 7

no.

Answer 8

well can you help me with 4 other questions please

Answer 9

i have this

The compound interest formula is F = P(1 + i)^n where F is the total amount due, P is the initial cost or amount of money, i is the interest rate, and n is the number of periods interest is computed. A student purchases a $1300 laptop computer for school. The deal does not require payment until 2 years later. If interest is computed monthly, how much does the student have to pay at the end of 2 years? The monthly interest rate is 1.8 percent.

Answer 10

ok I will try, what do you have?

Answer 11

P=1300
i=.018
n = 12 because it is monthly
but n = 24 because of 2 years
F=1300(1+.018)^24
compute F

Answer 12

did you get 1994?

Answer 13

and 76 cents

Answer 14

That would be a bad deal,
that means that person is willing to pay 694.76 to borrow 1300

Answer 15

yes 1994.76

Answer 16

my damn software rejected the answer

Answer 17

I still think the directions somewhere has to say how to input the solutions. Decimals are tricky. I am given you real world solutions but if the instructions are to round to the nearest whole number 1995 would be the only accepted answer.

Answer 18

ok what about this one
A copper pipe, used for plumbing from the water main to a house, is 5 meters long and has a circular cross-section 3.2 cm in diameter. There is a 2.4 cm diameter hole in the center of the cross-section for the entire length of the rod. What is the volume of copper in the rod in cubic inches?

Answer 19

were you given a picture? Upload it by attaching the file.

Answer 20

yea theres the picture for the last problem

Answer 21

V=Bh
B is a circle
so B is pi(r^2)
\[V=\pi r^2h\]

Answer 22

so v=pi(5^2)(3.2)?

Answer 23

picture stated 1 gallon = 231 cubic inch
we sort of needed that info earlier

Answer 24

oh sorry

Answer 25

original solution is 10.95*231=2529.45 cubic inches

Answer 26

I think you will have a circle within a circle, but you should not be using diameter.
Take half of the diameter and that is your radius

Answer 27

3.2/2=1.6, is that right

Answer 28

yes if d=3.2 then r = 1.6

Answer 29

so is h the 2.4?

Answer 30

no 5 is the height (it you stand the pipe up you will see that it is 5)