If the sales tax rate in New Mexico is 5.125% what is the sales tax in the total price for a roll toilet paper if it cost $3.50 what is the sales tax and total price for the coat if it cost $45.87?

1) The sales tax for the toilet paper is $0.17.

2) The price of the coat is $43.63 and the sales tax is $2.24.

Step-by-step explanation:

1) Let the cost of the toilet paper be 'a'

Sales tax = 5.125%

Total cost = $3.50

Total cost = price+ 5.125% of price

3.50 = a + (5.125 x a/100)

3.50 = (100a + 5.125a) /100

350 = 105.125a

a = 350/105.125

a = $3.33

Sales tax = 3.50 - 3.33

= $0.17

The sales tax for the toilet paper is $0.17.

2)let the price of the coat be 'a'

cost of the coat = $45.87

Cost = a + 5.125% a

45.87 = a + (5.125/100) a

45.87 = ( 100a + 5.125a) /100

4587 = 105.125a

a = 4587/105.125

a = $43.63

Sales tax = 45.87 - 43.63

= $2.24

The price of the coat is $43.63 and the sales tax is $2.24

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step-by-step explanation:

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