Question

Motion Problems - D = R x T
S = Skateboard
B = Bicycle
Together, a skateboard and a bicycle cost $199.00. The skateboard costs $51.00 less than a bicycle. How much does each cost?

Answer 1

well... total cost = 199
skateboard costs (x-51), where x = cost of bicycle.

x + (x-51) = 199
this statement says

"cost of bicycle + cost of skateboard = the total cost of them together"

just use some algebra to solve for x
2x - 51 = 199
2x = 250
x = 125

now figure out using x what the individual cost is
skateboard cost:
x-51
125-51
skateboard costs $74

obviously bicycle is just x, so it costs $125

125+74 = 199.

Answer 2

IDK where d*rt is supposed to be used or why you originally posted it... but i dun see how that is relevant to this type of problem eh (this isn't really a "motion" problem, there is no movement).

Answer 3

just to keep you up to date with the formula DRT

Answer 4

I came here expecting to help someone with a "motion" problem. Instead, I get a problem related to the cost of skateboards and bikes. Guess I'll have to keep looking :P