Asked by Panda Baby

During a clothing store’s Bargain Days, the regular price for T-shirts is discounted by $5. There is a state sales tax of 5%, and the $5 discount is applied before the sales tax is calculated.
Write a rule for the function p(r) that expresses the final price p of a T-shirt with the discount applied and sales tax added.
How much would you pay during Bargain Days for a shirt regularly priced at $15.50?
Answered by bobpursley
Pr=(RP-5)(1.05) RP is regular price.
Pr=(15.50-5)(1.05)=11.03
Answered by Henry2
a. P(r) = (P - 5) + 0.05(P-5) = 1.05(P-5). P = regular price.

b. Pr = 1.05(P-5) = 1.05(15.50-5) = $11.03.

Answered by melly
Thnxss!
Answered by That makes no sense
Plz explain
Answered by Anonymous
Yeah please explain, I'm not looking for the answer, I'm looking for an explanation.
Answered by @_@
where did the 1.05 come from
isn't it suppose to be 0.05 which is 5% as a decimal
Answered by Dave
0.05 is used to calculate the specific percentage amount, as in “I need 25% of a pound” or 0.25

However, when trying to add a percentage to a value you use 1.xx to account for the whole variable amount. 10% = 1.10 as an example

So for the t-shirt example above, if we use 1.05 we are adding 5% to the discounted t-shirt amount NOT finding the cost of 5% of tax on it.

Hope it helps!
Answer
During a clothing store’s Bargain Days, the regular price for T-shirts is discounted to $8.25. You have an additional coupon for $5.00 off, regardless of how many shirts are purchased. Write a rule for the function p left parenthesis t right parenthesis that expresses the final price of t T-shirts with the discount applied.How much would you pay during Bargain Days for 11 shirts?
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