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
Anna11 [10]
3 years ago
9

Solve for the value of d. ​

Mathematics
1 answer:
Yuki888 [10]3 years ago
5 0

Answer:

d+7+3d+5=180

4d+12=180

4d=180-12

4d=168

d=42

You might be interested in
You deposit $4500 in an account that earns 2% per year simple interest. The
Gnom [1K]

Answer:

based on the given formula the amount calculated is for the beginning of the year.

substituting 1 you get 4500 which is beginning of the year 1 when you deposited.

based on that logic substituting 7 for beginning of year 7 will be

4500 + 6 * 0.02 * 4500

4500 + 540

5040

option A.

7 0
2 years ago
Find mzC.<br> B<br> (2x – 12)<br> (9x – 26)<br> (4x + 43)
MrMuchimi

Answer:

m<C = 119°

Step-by-step explanation:

Create an equation to find the value of x.

(9x - 26)° = (2x - 12)° + (4x + 43)° (exterior angle theorem of a ∆)

Solve for x

9x - 26 = 2x - 12 + 4x + 43

Add like terms

9x - 26 = 6x + 31

9x - 6x = 26 + 31

3x = 57

Divide both sides by 3

x = 19

✔️m<C = 4x + 43

Plug in the value of x

m<C = 4(19) + 43

m<C = 76 + 43

m<C = 119°

4 0
3 years ago
In how many ways you can put 20 books on 50 shelves so that there is not more than one book on a shelf?
elena-s [515]

Answer:

The other answer I saw is the same way that I used to explain in my class as well. But, there's an alternative way to reach the answer as well

First thing that we should know is that if there are 'n' units kept in a row, then there are 'n+1' gaps generated by them. So, what we should understand is that when there is no item there is 1 gap, when there is one item there are 2 gaps, and so on.

Let us use that concept here, with a small variation: the 5 shelves are 5 initial gaps. The first book has 5 choices (5 initial gaps) to go to. Once we have placed this book, there are now 6 gaps on which the 2nd book can be placed. After the 2nd book is placed, there are 7 gaps in which 3rd book can be placed, and so on.

So, the total arrangements will be = 5*6*7*...24 [as there are 20 books] = 24P20

8 0
4 years ago
Able is 6' tall and cancel 8' shadow a lamppost next to him cast a 3.5' shadow you to drop down the news to build an equation th
Dafna1 [17]
Umm I don't know




Sorry
8 0
4 years ago
What is the length of CD¯¯¯¯¯¯¯¯?
vladimir2022 [97]

Answer:

23 units

Step-by-step explanation:

Since both lines are chords, they're equal in length. This means we can set them equal to each other.

2x + 2x +2 = 15 + 8

This becomes 4x + 2 = 23.

Subtract two from each side to get 4x = 21.

Now divide by 4 to isolate x.

This makes x = 5.25.

Now we take the 5.25 and substitute it into the 2x + 2x + 2. This equals 23 units

6 0
3 years ago
Other questions:
  • What is 0.48 in simplest form
    9·1 answer
  • In circle P, chord AB is 3 inches from the center and chord CD is 5 inches from the center. Chord CD is ____ than chord AB.
    10·2 answers
  • The number of widgets that a manufacturing plant can produce varies jointly as the number of workers and the time that they have
    11·2 answers
  • henry is a painter. he uses the function h(x)=50x - 20 to determine the amount he charges for a painting that took him x hours t
    10·1 answer
  • gretchen is baking pies. she needs 1/4 vup of butter fir each pie. one stick of butter os 1/2 cup. how many sticks will she need
    15·1 answer
  • How do you solve this?
    10·2 answers
  • Connor has completed 4 test questions, which is 25% of the total amount of test questions. How many test questions are there in
    5·2 answers
  • Please answer fast! I need a lot of help
    7·2 answers
  • Draw two different non regular hexagons with all angles equal
    10·1 answer
  • Explain in word form.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!