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
bogdanovich [222]
3 years ago
9

Isaac wrote the integers from 1 through 104, inclusive. How many digits did he write?

Mathematics
1 answer:
Lilit [14]3 years ago
6 0

We know that Isaac wrote the integers from 1 to 104, and we need to determine how many digits did he write

Let's look at single digit, double digit and triple digit numbers separately:

Single Digit Numbers' Range: 1-9

Total Single Digit Numbers = Ending Number - Beginning Number + 1

⇒ Total Single Digit Numbers = 9 - 1 + 1 = 9

Number of digits written in single digit numbers = 9 × 1 = 9 ......... (i)

Double Digit Numbers' Range: 10-99

Total Double Digit Numbers = Ending Number - Beginning Number + 1

⇒ Total Double Digit Numbers = 99 - 10 + 1 = 90

Number of digits written in double digit numbers = 90 × 2 = 180 ....... (ii)

Triple Digit Numbers' Range: 100-104

Total Triple Digit Numbers = Ending Number - Beginning Number + 1

⇒ Total Triple Digit Numbers = 104 - 100 + 1 = 5

Number of digits written in triple digit numbers = 5 × 3 = 15 .......... (iii)

Adding (i), (ii) and (iii)

Total number of digits written from 1-104 = 9 + 180 + 15

⇒ Total number of digits written from 1-104 = 204

Hence, while writing the integers from 1-104, we use 204 digits.

You might be interested in
Venn diagrams: unions, intersections, and complements<br><br><br> Attached is the photo references
ohaa [14]

Answer:

4, 8

Step-by-step explanation:

D iswholly part of B. so B intersect D is D

3 0
2 years ago
Read 2 more answers
Hello, may someone plz help me
fenix001 [56]

Answer:

Step-by-step explanation:

this is not high school- but uhm

1) KAT

2)TAK

3) SAT

i think thats the answer for the first section..

4 0
3 years ago
5. The combined perimeter of a circle and a square is 16. Find the dimensions of the circle and square
charle [14.2K]

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaq

8 0
2 years ago
(PLSSS HELP!! 35 points!!) Ted has to gift wrap a box of chocolates that is shaped like a triangular prism. What is the minimum
vichka [17]

Answer:

C

Step-by-step explanation:

just multiply them together should work

6 0
3 years ago
What is the next term of the following sequence? 12, 6, 3, ...
Shalnov [3]
A m8 the rule is to divide by 2
7 0
3 years ago
Read 2 more answers
Other questions:
  • Round 11,234 in 4 different ways
    13·1 answer
  • The perimeter of a rectangular floor is 50 feet. find the dimensions of the floor if the length is four times the width.
    12·1 answer
  • Write an equation and solve.
    14·1 answer
  • Letters in the word mathematics
    14·1 answer
  • Zap’s car rental charges $15.00 an hour to rent a car.Easy car rental charges $8.50 an hour plus a rental fee of $25.50 per rent
    15·2 answers
  • ••••••••••••••••••••••••••••••••••••••••••
    7·2 answers
  • Help me please I need it
    11·1 answer
  • Taking the absolute value of a number is the same thing as taking the opposite of the number. - true or false
    6·2 answers
  • En la tiendita de la escuela venden frapés de los siguientes sabores: fresa,
    12·1 answer
  • Solve the system of equations using elimination<br>2X-y=1<br>-2X+3y=5​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!