answer.
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
alexira [117]
2 years ago
11

A collection of 77 quarters and dimes is worth $12.50. How many quarters and dimes are there? Set it up plz

Mathematics
1 answer:
mihalych1998 [28]2 years ago
4 0
So let's say quarters = x and dimes = y. You'd then put x + y = 77 (for a total of 77 coins). And your second equation would be .25x + .10y = 12.50 (.25 for the total value a quarter holds and .10 for a total value a dime holds). Then you'd do matrices on a calculator.
You might be interested in
THE COST OF SALAD AT A RESTAURANT DEPENDS ON MANY FACTORS LIST AT LEAST TWO INDEPENDENT VARIABLES THAT COULD AFFECT THE COST OD
Contact [7]

Answer:

A

Step-by-step explanation:

7 0
1 year ago
Katarina bought a package of 500 stickers. Each sheet in the package has 20 stickers.
Mashcka [7]
I think there are 125 heart stickers and 375 star stickers. 20/4 = 5, so there are 5 heart stickers per sheet. there are 25 sheets in the package, 5 x 25 = 125. if the remaining stickers on a sheet are stars then there are 15 star stickers per sheet. 15 x 25 = 375.
5 0
1 year ago
Using the power series methods solve the 1st order Lane-Emden Equation:
nikklg [1K]

Answer:

Step-by-step explanation:

xy = 2y + xy = 0

Hence, 2y + xy = 0 ---------(1)

Differentiating equation (1) n times by Leibnitz theorem, gives:

2y(n) + xy(n) + ny(n - 1) = 0

Let x = 0: 2y(n) + ny(n - 1) = 0

2y(n) = -ny(n - 1)

∴ y(n) = -ny(n - 1)/2 for n ≥ 1

For n = 1: y = 0

For n = 2: y(1) = -y

For n = 3: -3y(2)/2

For n = 4: -2y(3)

5 0
1 year ago
The area of a trapezoid is 140 cm2 and the height is 20 cm. What is the sum of the bases?
Reil [10]
D 7
A million apologies if I’m wrong half of my brain is still on vacation!
6 0
2 years ago
Read 2 more answers
The width of a rectangle is three times its height. If it has an area of 60.75 square feet, what are its dimensions?
horrorfan [7]
The answer is D my dude don’t over think. Since it’s are multiply your answer choices till you reach 60.75
8 0
1 year ago
Read 2 more answers
Other questions:
  • A school graduation class wants to hire buses and vans for a trip to Jasper National Park. Each bus
    6·1 answer
  • Evaluate 1/4c + 3d when c = 6 and d = 7
    7·2 answers
  • Find the general solution of the given second-order differential equation. 25y'' − 15y' − 4y = 0
    9·1 answer
  • Given: X is the midpoint of WY, WX = XZ<br> Prove: XY = XZ
    5·2 answers
  • Suppose T is the transformation from ℝ2 to ℝ2 that results from a reflection over the y-axis followed by a reflection over the x
    11·1 answer
  • Use the roster method to write each of the given sets. (Enter EMPTY for the empty set.)
    9·1 answer
  • An image is 2 units to the left of the pre-image.
    8·2 answers
  • Consider this system of equations. Which shows the second equation written in slope-intercept form? y = 3 x minus 2. 10 (x + thr
    12·2 answers
  • A white-tailed deer can sprint at speeds up to 30 miles per hour. American bison can run at speeds up to 3,520 feet per minute.
    10·2 answers
  • Solve a = 2x + 6xz for X
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!