Question

Joel buys a coffee mug for 10 dollars. Sales tax is 5%.How much does Joel actually have to pay?​

Answer 1

Answer: $\ 11.5$

Step-by-step explanation:

You need to analize the information given in the exercise.

You know that the cost of the coffee mug that Joel buys is:

$cost\ coffee=\ 10$

And the Sales tax is the following:

$Sales\ tax=15\%$

You can make the conversion of the Sales tax from percentage to a decimal number by dividing it by 100. Then, this is:

$Sales\ tax=\frac{15\%}{100}\\\\Sales\ tax=0.15$

Then, you can write the following equation, where "x" represents the total amount of money (in dollars) that Joel actutally has to pay:

$x=10+(0.15)(10)$

Finally, you must evaluate in order to find the value of "x". You get that this is:

$x=10+(0.15)(10)\\\\x=10+1.5\\\\x=11.5$