1/4 * 1/3 * 1/2 * 1/1 = 1/24 chance that all 4 letters are placed in the correct envelopes.
With the first envelope, there are 4 choices of letters, so the probability of picking the correct letter is 1/4.
With the second envelope, there are 3 remaining letters, so the probability of picking the correct letter is 1/3.
The same logic follows the the third and final letter.
To solve this, create an equation that follows 45% of a value is 18. This would look like x*.45=18. Now, solve for x, x*.45=18, divide by .45, x=18/.45=40, making your value 40. To check, plug in your value to the equation 40*.45=18 and see if it stays true.
Answer:
6 2/3 or 20/3
Step-by-step explanation:
Brainliest pls?
Answer:
(g*h)=x.
Step-by-step explanation:
the expression is equivalent
Answer:
1. Not equal
2. Equal but not connected
3. Equal
4. Equal
Step-by-step explanation: Sorry if not correct :(
