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
Delicious77 [7]
2 years ago
9

find the sum of all possible four digit numbers that can be formed using the digits 2,4,5,6,7 and 8 with no repeated digits

Mathematics
2 answers:
Debora [2.8K]2 years ago
8 0
1+1
2+2
5+0
3+3
6+2-1
4+4
r-ruslan [8.4K]2 years ago
6 0

Answer:

2133120

Step-by-step explanation:

using 6 given digits, lets create a 4 digit number:

to choose the first number, you have 6 options. to choose the second number we have 5 options left. for the third number we have 4 options left. and for the fourth number, we have 3 options left.

6*5*4*3 = 360

with no repeats, 360 numbers can be formed.

this means that each number will occur 60 times each (360/6 digits)

so to find the sum:

60*(2+4+5+6+7+8) = 1920

but, we have one more thing:

In the thousands place, our sum of digits is multiplied by 1000; in the 100’s place, by 100; in the ten’s place, by 10; and in the one’s place, by 1. so:

1920(1000+100+10+1) = 1920*1111 = 2133120

You might be interested in
Matt went hiking every 12 days and swimming every 8 days when will he go hiking again on the same day
-Dominant- [34]
Every 24 days Matt will do both on the same day.
3 0
3 years ago
Please help me with my HW
pentagon [3]
So you can scan it here and it will give you the sotoiun and answers just make sure u show ur workkk good luck
4 0
2 years ago
Read 2 more answers
What is 7 times 7 + 93?
solniwko [45]

Answer:

142

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What are the measures of angles M and N?<br> m m m m &lt; M = 119° and m
NNADVOKAT [17]

Answer:

m<M = 113 deg

m<N = 61 deg

Step-by-step explanation:

In an inscribed quadrilateral, opposite angles are supplementary.

m<M + m<K = 180

m<N + m<L = 180

m<M + 67 = 180

m<M = 113

m<N + 119 = 180

m<N = 61

7 0
3 years ago
The simplest form of the expression -2x2(x – 5) + x(2x2 – 10x) + x is
Bad White [126]
For this case you must simplify the expression respecting the rules of multiplication of mathematics.
 The steps to simplify the expression are the following:
 First multiply what is in the parentheses
  -2x ^ 2 (x - 5) + x (2x ^ 2 - 10x) + x
  -2x ^ 3 + 10x ^ 2 + 2x ^ 3 - 10x ^ 2 + x
 Then add the terms that have the same exponent
 (-2x ^ 3 + 2x ^ 3) + (10x ^ 2 - 10x ^ 2) + x
  x
 The final simplification is
 x
 answer
 x
4 0
3 years ago
Read 2 more answers
Other questions:
  • (1/4) with an exponent of 2
    12·1 answer
  • Factor 4y^2 - 4y - 20
    12·1 answer
  • Two ships leave a harbor at the same time. one ship travels on a bearing upper s 12 degrees upper w at 18 miles per hour. the ot
    8·1 answer
  • Which expression represents the greatest common factor (GCF) of 48 and 136?
    12·2 answers
  • mark creates a flower bed that is semicircular in shape as shown on the image. the diameter of the flower is 5 meter
    15·1 answer
  • In the system shown below, what are the coordinates of the solution that lies in quadrant I?
    8·2 answers
  • 11100020203+6363674474
    5·2 answers
  • Help anyone can help me do this question,I will mark brainlest.​
    9·1 answer
  • Whoever answers gets brainlist!
    13·1 answer
  • What is the answer can someone explain it
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!