Katie and margarita have $20 each to spend at students choice bookstore where all students receive a 20% discount they both want to purchase a copy of the same book which normally sells for 22.50 plus 10% sales tax to check if she has enough to purchase the book katie takes 20% of 22.5 and subtract that amount from the normal price she takes 10% of the discount to selling price and add to back to find the purchase amount. margarita takes 80% of the the normal purchase price and then computes 110% of the reduced price. is katie correct? is margarita correct? do they have enough money to purchase the book?

Both of them are correct. Margarita and Katie do have enough to purchase the books.

Step-by-step explanation:

Consider the provided information.

Katie and Margarita have $20 each to spend at students Choice bookstore where all students receive a 20% discount they both want to purchase a copy of the same book which normally sells for 22.50 plus 10% sales tax to check.

Katie takes 20% of 22.5 and subtract that amount from the normal price she takes 10% of the discount to selling price and add to back to find the purchase amount.

Let us find out whether Katie is correct or not.

She take 20% of 22.5 which is:

She subtract that amount from the normal price i.e = 22.5-4.5 = 18

She takes 10% of the discount to selling price:

And she add to back to find the purchase amount.

18 + 1.8 = 19.8

Which is the correct calculation.

Thus, Katie is correct.

Margarita takes 80% of the the normal purchase price and then computes 110% of the reduced price.

Let us find out whether Margarita is correct or not.

She take 80% of 22.5 which is:

Then she computes 110% of the reduced price.

Which is also the correct calculation.

Thus, Margarita is correct.

Both of them are correct. Margarita and Katie do have enough to purchase the books.

120 seems like the most sensible answer.

step-by-step explanation:

if there is only one topping on all caramel apples and there's 120 of them. then all apples should/will be covered in sprinkles. make sense?

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: