Missy bought a skateboard for $49.50 with a discount of 15% and a helmet for $37.60. The sales tax on both items was 6%. If she paid with a $100 bill, how much change will she get back from the cashier?

Mathematics · Middle School · Tue Nov 03 2020

Answered on

Given the statement:

Missy bought a skateboard for $49.50 with a discount of 15% and a helmet for $37.60.

The sales tax on both items was 6%

Determine her change if she paid $100.

Solution:

We must first convert all percentage into decimals. In converting a percentage into decimal, divide the percentage by 100, hence in converting a decimal to percentage, multiply the percentage by 100

Discount

= 15/100

= 0.15

Sales tax rate

=6/100

=0.06

Now we solve the price of the skateboard with 15% discount, we can do this by multiplying 0.15 to the original price, then subtract the product to the original price.

=(0.15)($49.50)

= $7.425

= $49.5 -$ 7.425

=$42.075

Now we add the discounted price of the skateboard to the total price of the helmet in order to determine the cost of the two items.

=$42.075 + $37.60

Total price of the item= $79.675

Next step is to add the sales tax price by multiplying 0.06 with 79.675 and adding the product to the total price.

= ($79.675)(0.06)

=$4.78

Total cost with tax = $79.675 + $4.78

Total cost with tax = $84.46

Now to determine the change we subtract the total cost with $100

= $100 -$84.46

=$15.54

Final answer:

Missy received $15.54 from the cashier.