PP-T1-173

[max999]

173.
In a certain state, gasoline stations compute the price per gallon p, in dollars, charged at the pump by adding a 4 percent sales tax to the dealer's price per gallon d, in dollars, and then adding a gasoline tax of $0.18 per gallon. Which of the following gives the dealer's price per gallon d in terms of the price per gallon p charged at the pump?

(A) d = p - 0.22
(B)
(C)
(D)
(E)

ans: D
請問這個題在問什麼？
算式怎麼列?

[amyliang]

http://www.formosamba.com/phpBB3/viewtopi ... ns+compute

[max999]

不好意思~~我當時沒找到
謝謝amyliang