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
Alex777 [14]
2 years ago
9

Mr. Hayden's Bible class collected $11

Mathematics
1 answer:
ki77a [65]2 years ago
6 0

This is the only way I can think of this mathematically. This took a good 20 minutes for me. You need to guess and check. Like try 17 quarters, 50 nickels, and 37 dimes etc. until you get 11.00. My numbers are mathematically correct but we both know you cant have 18.909 quarters so. lol

Answer:

Quarters: 18.909

Nickels: 49.818

Dimes: 37.818

Somewhere around those numbers.

Step-by-step explanation:

$11.00 total in coins

Nickel = $0.05

Dime = $0.10

Quarter = $0.25

(n*0.05) + (d*0.10) + (q*0.25)

Solve the equation for q.

q=\frac{1}{2} d

(n*0.05) + (d*0.10) +( \frac{1}{2} d *0.25)

Simplify the expression.

9d + 2n = 440

d - n = -12

Multiply both sides of the equation by -9.

-9d + 9n = 108

9d + 2n = 440

Sum the equations vertically to eliminate at least one variable.

11n = 548

n=\frac{548}{11}

Substitute the given value of n into the equation d - n = -12

d-\frac{548}{11} =-12

d=\frac{416}{11}

Substitute the given value of n into the equation q=\frac{1}{2} d

q=\frac{1}{2} *\frac{416}{11}

q=\frac{208}{11}

Finally

d=\frac{416}{11}        d = 37.818

n=\frac{548}{11}        n = 49.818

q=\frac{208}{11}        q = 18.909

You might be interested in
Which graph represents the solution set for the system 2x + 5y ≤ 9 and 3x + 5y ≤ 9?
Solnce55 [7]
The answer is graph B. Have a nice day!
6 0
3 years ago
Read 2 more answers
A cylinder has a diameter of 24 inches. If its height is half its radlus, what is the volume of the cylinder in cubic Inches?
ella [17]

Answer:

about 2714.34 in^3

Step-by-step explanation:

24/2=12--radius

12/2=6--height

formula is V=(pi)(r^2)(h)

r is for radius and h is for height

V=(pi)(12*12)(6)

V=(pi)(144)(6)

V=(pi)(864)

V= about 2714.34 in^3

4 0
3 years ago
Find the volume of a triangular pyramid with a base area of 24 ft2 and a height of 18 ft.
Tems11 [23]
Volume = (1/3) * base area * height
              = 1/3 * 24 * 18
              = 144 ft^3
4 0
2 years ago
Read 2 more answers
The nature park has a pride of 7 adult lions and 4 cubs. The adults eat 6 pounds of meat each day and the cubs eat 3 pounds. Eva
ohaa [14]
54 remember to use pemdas
7 0
3 years ago
Read 2 more answers
How can you use angle bisectors of triangles in real life situations to solve problems?
lina2011 [118]
I would guess that bisecting angles and other geometrical constructs are used by architects when they are drafting the designs of buildings.
8 0
3 years ago
Other questions:
  • Which statement is false? *
    15·1 answer
  • Write the prime factorization of 48. use exponents when appropriate and order the factors from least to greatest
    8·1 answer
  • allenbrights electronics is having a 25% off sale. If the ratio is sale priced at $135 what is the regular price?
    10·1 answer
  • 2) Suppose that circles A and B have a central angle measuring 40°. Additionally, circle A has a radius of 5 2 ft and the radius
    9·1 answer
  • Please help it is due in less than an hour and it is my last day to do it before the end of the quarter,
    13·1 answer
  • Select the correct answer from each drop-down menu.
    5·1 answer
  • Use the method of lagrange multipliers to find
    8·1 answer
  • Let f(x) = x - 3 and g(x) = x + 11. Find f(x) · g(x).
    11·2 answers
  • The midpoint of x and m is a, what is x?
    7·1 answer
  • Find the slope of the line that passes through the pair of points (5,-6),(2,-3)​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!