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
Alex Ar [27]
2 years ago
9

Joe has 37 coins consisting of nickels, dimes, and quarters. There are four more nickels than dimes and two more quarters than n

ickels. What is the total number of quarters that joe has?
Mathematics
1 answer:
astraxan [27]2 years ago
5 0

Answer:

  15

Step-by-step explanation:

Let n, d, q represent the numbers of nickels, dimes, and quarters. The problem statement tells us ...

  n +d +q = 37

  n = d +4

  q = n +2

___

Rearranging the second equation gives ...

  d = n -4

Substituting that into the first, we get ...

  n + (n -4) +q = 37

  2n +q = 41 . . . . . . . add 4 and simplify

Rearranging the third original equation gives ...

  n = q -2

Substituting into the equation we just made, we get ...

  2(q -2) +q = 41

  3q = 45 . . . . . . . . add 4 and simplify

  q = 15 . . . . . . . . . divide by 3

Joe has 15 quarters.

_____

<em>Check</em>

The number of nickels is 2 fewer, so is 13. The number of dimes is 4 fewer than that, so is 9. The total number of coins is 15 + 13 + 9 = 37, as required.

You might be interested in
Plz help me Quick l need helpppp​
Angelina_Jolie [31]
I’m not really sure but I would have to guess 4.5 because all of the other numbers don’t have decimals
5 0
3 years ago
What are the solutions of the inequality (x-3)(x+5)&lt;=0
GarryVolchara [31]

Assuming that the inequality you were going for was a ≤, set both polynomials less than or equal to 0.

x - 3 ≤ 0

x + 5 ≤ 0

For the first equation add 3 to both sides of the inequality. For the second, subtract 5 from both sides.

x ≤ 3

x ≤ - 5

These would be your solutions I guess, however, if you want to expand upon that, your actual answer is (- ∞, - 5] because if you were to plot these two inequalities on a number line, that is where the overlap would occur.

4 0
3 years ago
What’s the answer?? <br><br> B/18=-6
erastova [34]

Answer:  -108/+18 = -6

Step-by-step explanation: Multiply 18 by -6 for B then it simplifies out.

3 0
3 years ago
Read 2 more answers
There are 3/4 of a pizza left over from last night how many 1/8 portions are there
KiRa [710]
3/4 of the pizza is left

3/4 = 6/8

There are 6 "1/8" portions left

hope this helps
8 0
2 years ago
What is twice the number of n and 11
saul85 [17]

Answer:

2n+22

Step-by-step explanation:

(n+11)2=

2n+22

7 0
3 years ago
Other questions:
  • Solve for the variable when the hypotinuse is 10 and you know one angle, 42
    9·1 answer
  • Mark and Amber Vinson have $22,000 to invest in two accounts, part at 10% and part at 12%. If they want to earn a return of at l
    10·1 answer
  • What is - 1.8 = h - 4.7?
    6·2 answers
  • The Fratellis will be arrested if and only if the police believe Chunk. Question 9 options: 1) p ↔ q 2) p ∨ q 3) p → q 4) ~p 5)
    10·1 answer
  • Find the average rate of change between f(-7) and f(-1) in the function f(x)=x^2+2x -8
    15·1 answer
  • MATH, please help! I don’t understand
    9·1 answer
  • A department store is having a sale.All jeans are on sale for 15% off.if a pair of jeans originally cost $115.00,what is the sal
    8·1 answer
  • Dont answer, didnt mean to make this
    9·2 answers
  • How do I graph the equation y-3=1/2(x-1)?
    10·1 answer
  • Two card are pulled from a normal deck of 52 cards, without replacement.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!