Question

Dolls are on sale for $15.89, plus an additional 8% tax. How much would two dolls cost?

Answer 1

`34.32$`

Explanation:

`"Cost of one doll" = "price of doll" + "price of doll"times"percentage tax"/100`

Because of PEMDAS(Order Of Operations) we know we first need to multiply and divide.

`15.89 + 15.89 times8/100 = 15.89 + (127.12)/100 = 15.89 + 1.2712`

Our next step is to do the adding.

`15.89 + 1.2712 = 17.1612`

And now we round off the answer to have only two decimal places for the cents.

`17.1612 -> 17.16$ = "cost of one doll"`

We want to buy two dolls, so our price doubles.

`"cost of two dolls" = "cost of one doll" times 2`

`17.16 times 2 = 34.32$`