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
stiv31 [10]
3 years ago
9

I have 3 times as many nickels as quarters. How many quarters do I have if I have

Mathematics
1 answer:
Nostrana [21]3 years ago
7 0

Answer:

18 Nickels, 6 Quarters

Step-by-step explanation:

For this problem, let's build a system of equations to find the number of nickels and dimes you have.  Let N represent the number of nickels and Q represent the number of quarters you have.

The first equation, you have 3 times as many nickels as quarters:

N = 3Q

The second equation, you have a total of $2.40.  Given we know nickels are $0.05 and quarters are $0.25:

0.05N + 0.25Q = 2.40

Now, let's use the two equations to find the number nickels and quarters you have.

N = 3Q

0.05N + 0.25Q = 2.40

0.05(3Q) + 0.25Q = 2.40

0.15Q + 0.25Q = 2.40

0.4Q = 2.40

Q = 6

Now, let's plug the value back into the equation:

N = 3Q

N = 3(6)

N = 18

And we can verify these values with the second equation:

0.05N + 0.25Q = 2.40

0.05(18) + 0.25(6) ?= 2.40

0.90 + 1.50 ?= 2.40

2.40 == 2.40

Therefore, we have found and verified the amount of Nickels and Quarters you have.

Cheers.

You might be interested in
What is the answer to this question and help in full steps
klio [65]
Cos(x)= adjacent/hypotenuse
cos(18)=x/25 (cross multiply)
25*cos(18)=x
x= 23.78 cm <--- this is rounded to the nearest hundredth. 
3 0
3 years ago
1.) Identify the domain of the equation y = x2 − 6x + 1.
nikdorinn [45]
1. "All real numbers" is the one domain of the equation y = x2 − 6x + 1 among the following choices given in the question. The correct option among all the options that are given in the question is the fourth option or option "D".

2. "Left by 4 units" is the one among the following choices given in the question that gives the direction and by how many units f(x) be shifted to obtain g(x). The correct option is option "A". 
8 0
3 years ago
Read 2 more answers
Using the Pythagorean Theorem, find the length of a leg of a right triangle if the other leg is 8 ft long and the hypotenuse is
tatyana61 [14]
A^2+8^2=10^2
a^2+64=100
a^2=36
a=6

B.6FT
4 0
3 years ago
If the discriminant is positive there is exactly one real solution.
Len [333]
It is in form
0=ax^2+bx+c
0=-3x^2-2x+6
a=-3
b=-2
c=6

so
x=
x=
x=
x=
x=
x=
x= or 
7 0
3 years ago
What is the value of z in the equation 2(4z − 6 − 6) = 170 − 46? 12. 5 15. 5 16. 5 18. 5.
Svetlanka [38]

Answer:

z = 18.5

Step-by-step explanation:

2(4z − 6 − 6) = 170 − 46

2(4z - 12) = 124

8z - 24 = 124

8z = 148

z = 18.5

8 0
3 years ago
Other questions:
  • Solve the inequality. 8p 2 &gt; 3p - 15
    6·1 answer
  • Please help fast pls
    10·2 answers
  • Slope of (-1,-6 and (1,-8)
    5·1 answer
  • What is another way to write 1 1/2
    11·2 answers
  • Volume in barrels of a tank 38.622 feet in diameter by 16 feet in height
    11·1 answer
  • What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (-2, 4)?
    13·1 answer
  • Solve for p<br><br> -5(p+3/5)=-4
    14·1 answer
  • If AC = 2, CD = 6, and CE = 3, what is BC?
    10·2 answers
  • The value V of a certain automobile that is t years old can be modeled by V(t) = 14,651(0.81). According to the model, when will
    15·1 answer
  • If the value of a home is assessed at $110,000, and the homeowner pays property tax at a rate of 25 mills, how much would the ho
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!