Answer:dhfkasdlasuyf984r98yt4ewiuhkjsdehfkjldashfkjnklsdgdfbgjudfigjsoaifsdgfljgdfrkjsgldhsagkjdsahfldskjaghkjldhfsagkdjaslhdsafkljhdsakhfdsfhdkjasfdksjhfdskfdshfdskjfkjsdhfkljdsf
Step-by-step explanation:sdfhdskaaaaahlfkjsdhafdkjshfdkjsahfdsjkl;;lewqjrewrmnlfkjdssssssssscjo;lsdq'/d;nfdoljshasfjldksnfdkljscdslfndsofndsjkndsanfkldsaofkljdnasfokjidhasfkdh;.asfkjdsahf;ad.shjifadjsfkldsajfhdsajfkdsjnfdasjfcdslaaa
<span>Say the code only needed to be one number long. Going from 0-9, there are ten digits. Therefore, there are ten unique codes.
Now say the code has to be two numbers long. There are ten possibilities
for the first digit, 0-9. But the second digit only has nine
possibilities, since each number has to be different. (The first number
might be 0, so the second can only go from 1-9) For each of the first
ten possibilities, there are nine possibilities for the second. We
multiply those two numbers together, 10 * 9, and we get 90.
Now we just extend the logic. The third number only has eight
possibilities, while the fourth number only has seven. 10 * 9 * 8 * 7 =
5040 possible codes. I hope this helped! has a great day! :)</span>
(200/250)×100 = 80%
100 - 80 = 20%
<em>hope </em><em>it </em><em>helps</em><em>.</em><em>.</em><em>.</em><em>!</em><em>!</em><em>! </em>
Answer:
x = -3
Step-by-step explanation:
-12 = 6x + 6
Start by subtracting 6 from both sides to get the 6x alone on the right.
-18 = 6x
Divide both sides by 6 to find out what x equals
x = -3
