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
Volgvan
3 years ago
5

How many 4 digit palindromes contain both the digits 1 and 2

Mathematics
1 answer:
Norma-Jean [14]3 years ago
8 0

What a clever sneaky little problem !

There can only be two of them:    1221  and  2112 .

You might be interested in
Sam is selling homemade cookies to raise money for charity. Each cookie sells for $.50. Sam spent $90 on baking supplies and eac
Hunter-Best [27]

9514 1404 393

Answer:

  360

Step-by-step explanation:

Sam obtains a "contribution margin" of $0.50 -0.25 = $0.25 per cookie. That will cover the cost of baking supplies when he sells ...

  $90 / ($0.25/cookie) = 360 cookies

Sam needs to sell 360 cookies before he can start making a profit.

_____

If you like, you can find Sam's break-even point by equating revenue and cost. The is the number of cookies Sam must sell for a profit of 0, that is, for non-negative profit.

  P = R - C

  0 = R - C

  R = C

  0.50n = 90 +0.25n

  0.25n = 90 . . . . subtract 0.25n

  n = 90/0.25 = 360 . . . .divide by the coefficient of n

You may notice this is similar to our description above.

3 0
3 years ago
Jamie knows the lengths of 2 sides of a triangle are 8
myrzilka [38]

<em>answer  \\ 4 < s < 20 \\ solution \\ 12 - 8 < s < 12 + 8 \\  = 4 < s < 20 \\ hope \: it \: helps</em>

4 0
3 years ago
Answer only one question​ No 1 only​
Svet_ta [14]

-10369

too lazy but that's the exact value

4 0
3 years ago
Read 2 more answers
3. What is wrong with the following statement? If d/e = f, then d multiplied by f = e.f should be divided by e.F and e should be
Molodets [167]

the initial statement is:

\frac{d}{e}=f

and then:

d\cdot f=e

So the second statement is false because f should be multiply by e, not by d so is option C)

4 0
1 year ago
Question 5 of 5
Allisa [31]

Answer:

I would say C not to sure tho

6 0
2 years ago
Other questions:
  • How many pounds go into 2. 5 tons
    11·2 answers
  • There are 23 students in a karate class. The number of girls is less than twice the number of boys. Write two systems of equatio
    13·1 answer
  • Jennifer Drive 265 miles in five hours what is her average rate of speed and miles per hour
    13·2 answers
  • Help me its easy lol
    11·1 answer
  • 62%
    7·1 answer
  • Please help me i need sm help thank you
    15·1 answer
  • A package of 6 pairs of insulated socks cost $85.20 what is the unit price of thepairs of socks
    9·1 answer
  • What is y, when x = 7. y = 3x + 10<br> PLEAS HELP I NEED IT RN
    5·1 answer
  • 2,5,8,...<br> Find the 41st term.
    14·1 answer
  • Soccer is played on a rectangular field that is usually 120 yards long and 75 yards wide. Find the perimeter and the area of the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!