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.
Answer:
4
Step-by-step explanation:
Answer:
Each student's contribution = $17
Each student will save $ 3
Step-by-step explanation:
Cost of the block of 5 tickets is $85.00.
Dividing the $ 85 by 5 would give the equal amount each would have to contribute.
$ 85/5=$ 17
Each will have to pay $ 17 to buy a block of 5 tickets for $85.00.
We can find the amount each will save by subtracting the amount to be shared by the 5 students from the amount paid by the 4 students.
They will save
$ 20-$17=
$3
Each of them will save $3 if they can get a fifth person to join them and the 5 people equally divide the price of the 5-ticket block.
The answer is the third one.
The way I think through these problems is that where you multiply (-7x), you use addition, and where you use addition (-4), you multiply.
The answers added together will equal the second number, -7, and multiplied will give you the third, -4.
What you had chosen as the answer was close. But 7.53+-0.53 equals positive 7, not negative. However they do round to -4 when multiplied.
The correct answer, -7.53 and 0.53, do equal -7 when added together and equal -4 when multiplied.
Answer:
the answer is B
Step-by-step explanation:
