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

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Answer 1 · 2016-12-20T20:18:07

#34.32$#

#"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$#