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

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:

And the Sales tax is the following:

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

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

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

goog may have it for you

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%