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
dmitriy555 [2]
3 years ago
15

How many times will the digit "3" appear if we write all whole numbers from 1-9999?

Mathematics
1 answer:
Marysya12 [62]3 years ago
5 0

Answer:

4000

Step-by-step explanation:

from 1 - 1000 = 300

1's    = 100

10's  = 100

100's = 100

1000's = 0

300 * 10 = 3000

then add in all the 3000's (ie 3001,3002, etc ) that adds one more thousand

3000 + 1000 = 4000

You might be interested in
1+1 lol dats da question
Gekata [30.6K]

Answer:

yellow?

Step-by-step explanation:

so you have 1 then add another an get yellow, bam im a genius

5 0
3 years ago
What is the recursive formula for the sequence? -14, -8, -2, 4, 10,...
FinnZ [79.3K]
You are adding 6 to each number. (N-1)+6, I guess
3 0
3 years ago
PEOPLE WHO ARE GOOD AT MATH CAN YOU PLEASE HELP ME!!!
OlgaM077 [116]

The cost of using 19 HCF of water is $32.49

Given in the question:

The monthly cost (in dollars) of the water use (in dollars) is a linear function of the amount of water used (in hundreds of cubic feet, HCF)

The cost for using 17 HCF of water is using $32.13

and, the cost of using 35 HCF is $61.83.

To find the cost of using 19 HCF of water.

Now, According to the question:

The cost for using 17 HCF of water is  $32.13

and, the cost of using 35 HCF is $61.83.

To find the slope:

(17, 32.13) and (35, 61.83)

Slope = (61.83 - 32.13)/ (35 - 17) = 1.65

We know that:

Formula of slope :

y = mx + b

32.13 = 1.65 x 17 + b

b = 1.14

The equation will be :

C(x) = 1.65x + 1.14

Now, To find the cost of using 19 HCF of water.

C(19) = 1.65 × 19  + 1.14

C(19) = $32.49

Hence,  the cost of using 19 HCF of water is $32.49.

Learn more about Slopes at:

brainly.com/question/3605446

#SPJ1

6 0
1 year ago
Which triangle similarity postulate can be used to justify that triangle XYZ is similar to triangle ABC?
Serga [27]

Answer:

a

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
In Example 3, the track has 6 lanes that are each 1 meter in width. a. What is the outer perimeter of the track? Round your answ
son4ous [18]

Answer:

Incomplete question, check attachment for the necessary diagram

Step-by-step explanation:

Note in the attachment,

We have two identical straight line of lenght

L1 = L2 = 84.39m

We also have two identical semicircle or radius 36.5m to the first track lane

But this is not the radius of the circle, the radius of the circle will now be 36.5 plus the 6 track lane and we are told that one track lane is 1m, then, the track lane is 6m

So, radius = 36.5+6

r = 42.5m

Then, we need to calculate the perimeter of the semicircle using the formula of perimeter of a circle and dividing by2

P = 2πr/2

P =πr

P = 22/7 × 42.5

P = 133.57 m

Then, the arc 1 is equal to arc 2 which is equal to 133.57 m

A1 = A2 = 133.57 m

Now we have all the dimensions,

Then, the perimeter can be calculated by adding the length of the sides

The perimeter of the field = Lenght of the two straight lines plus the length of the two semicircle arc

P = L1 + L2 + A1 + A2

P = 84.39 + 84.39 + 133.57 + 133.57

P =435.923 m

So, to the nearest meter

P ≈ 436m

The perimeter of the track is 436m

5 0
3 years ago
Other questions:
  • 2r=5s/2-s/4 solve for s
    5·2 answers
  • An ocbpus has 8 legs.
    11·2 answers
  • Which lists all of the factors of 12?
    8·1 answer
  • Solving a System of Linear Equations - Applications - Item 92238
    10·1 answer
  • ok so im doing a math quiz and i need to turn it in before 2:40 can you tell me the answer |-3-x|-2=5
    7·1 answer
  • Which point represents the x-intercept of this exponential function?
    9·1 answer
  • Write an equation (a) in slope intercept form and (b) in standard form for the line passing through (2,7) and perpendicular to 3
    13·1 answer
  • Am i right ? i just want make sure
    15·1 answer
  • Find the area of the shaded region in the circle at right.
    7·1 answer
  • How much is 7 cups in pints<br> Write your answer as a whole or mixed number in simplest form
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!