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 dis count rate (in decimal form). R=1- S/L The list price of the shirt is $30. What is the discount rate?
2 answers:
Answer:
Discount rate of the item will be .
Step-by-step explanation:
The given formula is S = L - rL
Here S = sale price of an item
r = Discount rate
L = List price of the item
S - L = - rL
L - S = rL
Now we have to calculate the discount price of the shirt when it's list price is $30.
By replacing L = 30 in the given formula
Discount rate of the item will be .
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.
Since, S = L -rL
rL = L -S
r =
r =
Since, the listed price of the shirt is $30, we have to find the discount rate.
Therefore, r = is the discount rate.
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