Michelle bought a new calculator for math class. It cost $17.25. The tax rate is 5.50%. Calculate the tax and the total cost for the
calculator. SHOW WORK.

The tax would be $0.95, and the total would be $18.20.

Step-by-step explanation:

From what we know, the calculator costs $17.25 and the tax rate is 5.50%, which is the same as 0.055 times the original price. Knowing this, multiply 17.25 (69/4) by 1.055 (211/200).

69/4 * 211/200

EX Step: I'll make this a single fraction for convenience.

(69 * 211)/(4 * 200)

Step 1a: Multiply 69 by 211 to get 14,559.

14,559/(4 * 200)

Step 1b: Multiply 4 by 200 to get 800.

14,559/800

Step 2: Divide 14,559 by 800 to get 18.19875.

18.19875

Step 3: Round to the nearest cent.

The total cost of the calculator is $18.20.

Step 4: To find the tax, subtract the total price (w/ tax) from the original price.

$18.20 - $17.25

Tip: You can subtract the two decimal values (.20 and .25) from each other. If the result is positive, add that to 0. If negative, subtract from 100.

20 - 25 = -5 (subtract from 100)

100 - 5 = 95 (This is the decimal portion, the whole is 0.)

The tax is $0.95.