Help please. Marry Christmas. The original price of a scooter is 89.99 before tax. When Trey bought the headphones they rang up 49.50 before tax. She then paid sales tax of 8% on the discounted price.

Part A: What is the percent discount on the headphones? Show all work and steps in your solution.
Part B: What is the total amount that Trey paid for the headphones including tax?

A) About a 55% discount

WORK:

We can make an equation

89.99x=49.50

Where x is the percent discount

Now solve for X

You’ll get about 0.55

B) 53.46 with tax

WORK:

Mulitply 49.5 by 1.08

We can use 1.08 since the 49.50 is already the 100 percent and the 8 percent is just extra so when multiplied it should give you 53.46

Double check:

We can also just find 8 percent of 49.5 and get 3.96

When added, it should result in 53.46

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column