Question

Jamie purchased a DVD that was on sale for 15% off. The sales tax in her county is 5%. Let y represent the original price of the DVD. Write an expression that can be used to determine the final cost of the DVD.
a. y − 0.15y
b. 0.05(0.85y)
c. y − 0.85y + 0.05y
d. 1.05(0.85y)

Answer 1

Answer:

option d

Step-by-step explanation:

i took the quiz and i got it right i chose d.

Answer 2

Answer: Option 'D' is correct.

Step-by-step explanation:

Since we have given that

Sale off = 15%

Rate of sales tax = 5%

Let y be the original price of the DVD.

Amount of sales tax would be

$\dfrac{5}{100}\times y\\\\=0.05y$

Amount after tax would be

y + 0.05 y = 1.05y

Now, there is off of 15%, so final cost of the DVD would be

$\dfrac{100-15}{100}\times 1.05y\\\\=\dfrac{85}{100}\times 1.05y\\\\=0.85(1.05y)$

Hence, Option 'D' is correct.