1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gtnhenbr [62]
3 years ago
14

Help me with this problem pleas

Mathematics
2 answers:
Marizza181 [45]3 years ago
5 0
The answer is B Q=15
fiasKO [112]3 years ago
4 0
3q+5+2q-5=65
3q+2q+5-5=65
5q+0=65
5q=65
divide both sides by 5
q=13

D is answer
You might be interested in
In how many ways can 3 letters be mailed in 6 mailboxes if each letter must be mailed in a different box? If the letters are not
meriva

Answer:

Question 1: 120 ways

Question 2: 216 ways

Question 3: 1/36 = 0.278

Explanation:

<u>Question 1: In how many ways can 3 letters be mailed in 6 mailboxes if each letter must be mailed in a different box? </u>

The first letter may be mailed in any of the 6 mailboxes: 6

The second letter may be mailed in any of the other 5 mailboxes: 5

The third letter may be mailed in any of the other 4 mailboxes: 4

According to the fundamental counting principle, the total number of possible outcomes is the product of the possible outcomes for each event.

Thus, the number of ways 3 letters can be mailed in 6 mailboxes, if each letter must be mailed in a different box is 6 × 5 × 4 = 120.

<u>Question 2: If the letters are not necessarily mailed in different boxes, how many ways are there of posting them? </u>

Again, you must use the fundamental counting principle.

This time, since the letters are not necessarily mailed in different boxes, each one can be mailed in 6 boxes, and the total number of ways 3 letters can be mailed is:

  • 6 × 6 × 6 = 216.

<u>Question 3. If the letters are mailed at random, and not necessarily in different boxes, what is the probability that all the letters are put in the same mailbox?​</u>

<u></u>

The probability that all the letters are put in the same mailbox is:

  • number of favorable outcomes / number of total possible outcomes

  • number of favorable outcomes: 6

        This is: the three letters are mailed in the first mailbox, or the three letters in the second mailbox, or the three letters in the third mailbox, or the three letters in the fourth mailbox, or the three letters in the fifth mailbox, or the three letters in the sixth mailbox: 6.

  • number of total possible outcomes: 216 calculated in the question number 2.

  • probability = 6 / 216 = 1/36 = 0.278
3 0
3 years ago
What is the greatest common factor for 66 and 121
Stels [109]

11 is the greatest common factor


4 0
3 years ago
Solve the equation: 5/x-1 - 3 = 4/x
vlada-n [284]

Answer:

x = 1/4

Step-by-step explanation:

6 0
2 years ago
An amount of $700 was invested at 7% for 7 months. What is the interest? Round your
Levart [38]

Answer:

49 dollars

Step-by-step explanation:

700 times .07

7 0
3 years ago
Find the surface area of the triangular prism (above) using its net (below).
r-ruslan [8.4K]

Answer:

96 square units

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  Please have a look at the attached photo.

My answer:

  • The length of the large rectangle is: 5
  • The width of the large rectangle is: 7

=> Area of the large rectangle = length × width  = 7*5 = 35 square units

  • The length of the middle rectangle is: 7
  • The width of the middle rectangle is: 4

=> Area of the middle rectangle = length × width  = 7*4 = 28 square units

  • The length of the small rectangle is: 7
  • The width of the small rectangle is: 3            

=> Area of the small rectangle = length × width  = 7*3 = 21 square units

Area of top and the bottom triangles =2* \frac{1}{2}bh  = 4*3 =12  

Total surface area = 35 + 28 + 21 + 12 = 96 square units

3 0
3 years ago
Read 2 more answers
Other questions:
  • anna is biking at x miles per hour. sara bikes at 10 mi/h. which expression represents the average of anna’s and sara’s speeds?
    13·1 answer
  • A central angle of circle P is angle The measure of is degrees.
    11·2 answers
  • Translate 3 units to the right and then rotate 180 around the origin
    10·1 answer
  • Find the value of x in the parallelogram.
    6·2 answers
  • Doug and Elizabeth planted a garden on their farm. They wish to increase its dimensions by 50% without changing the shape of the
    15·1 answer
  • At a used book sale, 5 books cost $15. What is the cost per book?
    12·1 answer
  • What is 2.96 x 10^7 in standard form
    6·1 answer
  • There are 4 tablespoons in 1/4 cup. How many tablespoons are in 2 1/4 cups?
    11·2 answers
  • You are making identical bagel platters using
    11·1 answer
  • The fastest elevators in the Burj Khalifa can travel 330 feet in just 10 seconds. How far does the elevator travel in 11 seconds
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!