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
koban [17]
3 years ago
8

Find the number of 4-digit numbers that contain at least three odd digits.

Mathematics
2 answers:
Greeley [361]3 years ago
4 0

Answer:

3000

Step-by-step explanation:

First find the 4 digit numbers that have all odd digits

Possible Odd digits  =5(1,3,5,7,9)  

So, total number of 4 digit numbers with odd digits can be calculated as  =5×5×5×5=625

Now find all the 4 digits numbers with at least 3 odd digits and the first digit as either 2,4,6,8 ( 0 would make it a 3 digit number)

The first digit can be 2,4,6,8

=4×5×5×5=500

Now find all the 4 digits numbers with at least 3 odd digits and the second digit as either 0,2,4,6,8

=5×5×5×5=625

Now find all the 4 digits numbers with at least 3 odd digits and the third digit as either 0,2,4,6,8

Now find all the 4 digits numbers with at least 3 odd digits and the second digit as either 0,2,4,6,8

=5×5×5×5=625

Now find all the 4 digits numbers with at least 3 odd digits and the fourth digit as either 0,2,4,6,8

=5×5×5×5=625

Add them together

625+500+625+625+625=3000

-Dominant- [34]3 years ago
4 0

Answer:

3000

Step-by-step explanation:

4*5*5*5+5*5*5*5+5*5*5*5+5*5*5*5+5*5*5*5 = 3000

You might be interested in
If a construction work digs down to 30 feet below the surface of the ground. What is her elevation?
tresset_1 [31]

Answer:

-30 feet

Step-by-step explanation:

You are going down so it would be negative, if you were going up it would be posotive.

4 0
2 years ago
Joe's gas tank is 1/4 full. After he buys 6 gallons of gas, it is 5/8 full. How many gallons can Joe's tank hold?
Korolek [52]

Answer:

Amount of gas that can be hold by Joe's tank = 16 gallons.

Step-by-step explanation:

Given that Joe's gas tank is 1/4 full. After he buys 6 gallons of gas, it is 5/8 full. Now we need to find about how many gallons can Joe's tank hold.

So let's find change that happened after filling the gas.

Change = (5/8 full) - (1/4 full)

Change = (5/8 - 1/4)  full

Change = (5/8 - 2/8)  full

Change = (5 - 2)/8  full

Change = 3/8  full

So that means 3/8 full happens in 6 gallons

then 1 full will happen in 6/(3/8) gallons = 6*(8/3) gallons = 48/3 gallons = 16 gallons

So the amount of gas that can be hold by Joe's tank = 16 gallons.

3 0
3 years ago
Solve for x:
slava [35]

Answer:

C

Step-by-step explanation:

Any value of x makes the equation true.

4 0
2 years ago
Last month, a dwarf lemon tree grew half as much as a semi dwarf lemon tree. A full size lemon tree grew three times as much as
Nadusha1986 [10]
Using a simple guess and check method, i started with the lowest common multiple of 3, and 27 (the total growth) and used 3. if you plug i the numbers, we will say a is the dwarf lemon tree, b is the semi-dwarf lemon tree, and c is the full lemon tree, you know 3times2 equals 6. if you triple 6 you get 18. so if A grew 3 inches , B had to have grown 6 inches, and C had to have grown 18 inches. add them all and you get 27. so the dwarf lemon tree grew 3 inches, semi dwarf grew 6 inches, the full size grew 18 inches.
3 0
2 years ago
BRAINLIEST to correct answer!!
Len [333]

They are equally spaced so all the circles share the same center point.

4 0
2 years ago
Read 2 more answers
Other questions:
  • 6/7 divided by 1 2/5
    5·1 answer
  • Use a calculator to solve the equation.<br><br><br> −8.5x + 0.49 = −2.91<br><br> The solution is x =
    14·1 answer
  • Prove <img src="https://tex.z-dn.net/?f=%5Clim_%7Bx%20%5Cto%200%7D%20%5Cfrac%7Bsin%20x%7D%7Bx%7D%20%3D%201" id="TexFormula1" tit
    15·1 answer
  • Hector planted 185 flowers in two days. There were 5 volunteers including hector , who each planted about the same number of flo
    14·2 answers
  • Order the fractions and decimals in descending order 2.3,2 4/5,2.6
    5·1 answer
  • A good will do one of both of which two things select two answers
    9·1 answer
  • Please help me solve!-
    12·1 answer
  • Simplify the expression 3.4(-2) + 10
    6·1 answer
  • What is the value of k?​
    14·2 answers
  • You are going to the mall with your
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!