SOLUTION: The sale Price S (in dollars) of an item is given by the formula S=L - rL, where L is the lost price (in dollars) and r is the discount rate (in decimal form) a. Solve the formu

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Question 991207: The sale Price S (in dollars) of an item is given by the formula S=L - rL, where L is the lost price (in dollars) and r is the discount rate (in decimal form)
a. Solve the formula for r

Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
The sale Price S (in dollars) of an item is given by the formula S=L - rL, where L is the list price (in dollars) and r is the discount rate (in decimal form)
a. Solve the formula for r
S = L - rL
rL = L-S
r = (L-S)/L = 1 - (S/L)
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b. The list price of the shirt is $30. What is discount rate?
r = 1 - (S/30)

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Cheers,
Stan H.

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!












John

My calculator said it, I believe it, that settles it

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