Question

The price, s, of a mountain bike at Speed Cycling is $200 less than twice the price, d, of the same bike at Downhill Racing. The difference in price between the bike at Speed Cycling and Downhill Racing is $320. Which system of equations can be used to determine the price of the bike at each store?
A
s - 2d = -200
s - d = 320

B
2s - d = 200
s - d = -320

C
2s - 2d = 200
s + d = 320

D
s - 2d = -200
s - d = -320