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
alexdok [17]
3 years ago
15

I have some questions regarding combinations in finite. Here is my first one I am stumped on:

Mathematics
1 answer:
podryga [215]3 years ago
8 0

We will get the number of possible selections, and then subtract the number less than 25 cents.

We can choose the number of dimes 5 ways 0,1,2,3 or 4.
We can choose the number of nickels 4 ways 0,1,2 or 3.
We can choose the number of quarters 3 ways 0,1, or 2.

That's 5*4*3  = 60 selections 

Now we must subtract from the 60 the number of selections of coins that are less than 25 cents. These will involve only dimes and nickels. 

To get a selection of coin worth less than 25 cents:
If we use no dimes, we can use 0,1,2  on all 3 nickels.
That's 4 selections less than 25 cents. (that includes the choice of No coins at all in the 60, which we must subtract).

If we use exactly 1 dime , we can use 0,1,2, or all 3 nickels.
That's the 3 combinations less than 25 cents.

And there is 1 other selection less than 25 cents, 2 dimes and no nickels. 

So that's 4+3+1 = 8 selections which we must subtract from the 60.
 
Answer 60-8 = 52 selections of coins worth 25 cents or more.

You might be interested in
Express the extended fraction at the right as a simple fraction in lowest terms.
ValentinkaMS [17]

Answer: 5/2

Yes it has to be 5/2

5 0
3 years ago
Read 2 more answers
Write the equation in standard form 4x-3=5y
just olya [345]

4x-3=5y

it would be : 4x - 5y = 3

8 0
3 years ago
Read 2 more answers
What are the solutions to the equation 13x? - 17x + 7 = 0?<br> ©
ICE Princess25 [194]

Answer:

x=7/4

Step-by-step explanation:

13x-17x+7=0

-4x+7=0

-4x+7-7=0-7

-4x=-7

-4x/-4=-7/-4

x=7/4

8 0
3 years ago
Oscar wrote a function f(x) = 20x - 6 to find the amount of money he would make after dog-sitting x number of puppies over sprin
vodomira [7]

Answer:

1,2,3

Step-by-step explanation:

you can't have half of a dog so it is all the whole numbers

7 0
3 years ago
Mr. Soto plans to open a savings account. Four banks offer the annual interest rates shown. Which list shows these interest rate
Delvig [45]
Ok, so IDK if I'm about to do this problem right, but here we go;


so first, lets change these all to decimals (I more of a decimal gal)

3 1/2 = 3.5
3 2/3 = 3.6666 (repeating)
3 3/5 = 3.6
3 3/8 = 3.375

So now, just order them from greatest to least.  

3.66666, 3.6, 3.5, 3.375.  

Now, change them back to fractions.  
3 2/3, 3 3/5, 3 1/2, 3 3/8


So, if I'm correct, the answer is 3 2/3%, 3 3/5%, 3 1/2%, 3 3/8%
Hopefully I solved your problem! 
6 0
3 years ago
Other questions:
  • PLZ HELP ASAP RIGHT TRIANGLES
    10·1 answer
  • A midsegment triangle ABC is parallel to a side of triangle ABC what is the missing statement in this proof
    15·1 answer
  • Write an expression that evaluates to true if the value of the integer variable numberOfPrizes is divisible (with no remainder)
    12·1 answer
  • Mike makes 4 dozen cookies. He brings 75% of them for a party at his school. How many did he bring?
    9·1 answer
  • The product of 15 and the sum of a number and 5 is 90.
    15·1 answer
  • Kira bought 6 bags of popcorn for 15.36 how much would he pay for 4 bags
    8·1 answer
  • Translate the following sentence into an equation using n for the unknown number. Then solve for n. when 15 is decreased by thre
    10·1 answer
  • mrs baxter deposits $2,000 in an account that earns 5% simple interest.How much is mrs baxter's investment worth after eight yea
    14·1 answer
  • What are the like terms in the algebraic expression?
    12·1 answer
  • A mouse traveled a total distance of StartFraction 3 Over 24 EndFraction of a mile in a maze over the past 3 hours. The mouse tr
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!