Question

The tax rate at this restaurant is 9. 5%. Some other person’s sales tax is $1. 61. How much was their subtotal?

Answer 1

1.76295

1.76( 1 dp)

Explanation:

`$1. 61`

`1.61 * 9.5 \\ 1.61 * (9.5)/(100) \\ (1.61)/(1) * (9.5)/(100) \\ ( 15.295 )/(100) \\ = 0.15295 \\ add \: 0.15295 \: to \: 1.61 \\ = 1.61 + 0.15295 \\ = 1.76295 \\ approx = 1.76`