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.
y − 0.15y
0.05(0.85y)
y − 0.85y + 0.05y
1.05(0.85y)

Answer 1

100% - 15% = ?

Answer 2

85

Answer 3

85%, good

we convert that to a decimal to get 0.85, so the discounted price is 0.85y

now we calculate sales tax

Answer 4

we can multiply 0.85y by (1+tax percentage/100)

Answer 5

so if sales tax = 5%

1 + sales tax/100 = ?

Answer 6

is it c

Answer 7

please follow my instructions

Answer 8

ok

Answer 9

if sales tax = 5

1 + sales tax/100 = ?

Answer 10

105

Answer 11

1 + 5/100 = ?

Answer 12

106

Answer 13

5/100 = ?

Answer 14

i don't understand are you saying add or divide if divide 50

Answer 15

/ means divide

Answer 16

5 divided by 100 is?

Answer 17

25

Answer 18

use a calculator if you are unsure

Answer 19

20

Answer 20

here is an online calculator: https://www.google.com/search?source=hp&q=google+calc&oq=google+calc&gs_l=psy-ab.3..35i39k1j0i20k1l2j0.46.866.0.980.11.9.0.0.0.0.185.872.4j4.8.0....0...1.1.64.psy-ab..3.8.870...0i131k1j0i67k1.Ydu66VIpYkk

Answer 21

0.05

Answer 22

good

so 1 + sales tax/100 = 1.05

so your final answer is 1.05(0.85y)

Answer 23

k thx your really good at math lol