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
Greeley [361]
2 years ago
8

Carol has some dimes and quarters. If she has 19 coins worth a total of $3.10, how many of each type of coin does she have?

Mathematics
2 answers:
Dmitrij [34]2 years ago
7 0

Answer:

Step-by-step explanation:

Equations

Let the dimes be x

Let the quarters be y

x + y = 19                     (1)                   Multiply this equation by 0.1

0.1x + 0.25y = 3.10     (2)

0.1x + 0.1 y =    1.90     (3)                   Subtract 3 from 2

          0.15y  =  1.20                            Divide by 0.15

          0.15y/0.15 = 1.20/0.15

                 y = 8

x + y = 19

x + 8 = 19                                               Subtract 8 from both sides

x+8-8  = 19-8                                          Combine

x = 11

Answer

Carol has 8 quarters

She has 11 dimes

                     

Mekhanik [1.2K]2 years ago
4 0
She has 8 quarters 11 dimes
You might be interested in
State a cubic or quartic function with the least degree possible in intercept form for the given graph. Assume that all x-interc
Iteru [2.4K]

Answer:

y = -x^{3} - 2x^{2} + 5x + 6

Step-by-step explanation:

The function will be cubic.  The x-intercepts are -4, -1, and 2

The constant factor is -1 because the graph falls on the right.  So,

y = -(x + 4)(x + 1)(x - 2)

y = -x^{3} -2x^{2} + 5x +6

6 0
3 years ago
Find the range of the function. ƒ(x) = x2 + 3
beks73 [17]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
If n represents a number,then write an expression for three times the difference of the number and six increased by four times t
Contact [7]

Write and simplify the expression:

3(n-6)+4n

3n-18+4n

7n-18

Solution: 7n-18

I hope I helped you with your solution! If you could give me brainliest, I would be very thankful!

3 0
4 years ago
PLEASE HELP! I would really appreciate it!
andrezito [222]
The awnser is C because there is a right angle which is 90 degrees then there is also a vertical angle of 118 degrees. There is also a supplementary angle of 70 degrees. When you add these angles you get 278 degrees which you subtract from 360 to find the last angle which is K and you get 82 degrees
6 0
3 years ago
Suppose you have a coupon for 10% off and you use it to buy a CD which was already discounted 15%. Do you end up with a discount
Andrew [12]
No because the extra 10% is off the discounted price, not the original. image that the CD originally cost $10. 15% off of the CD would make the price $8.50. Another 10% off of $8.50 would make the price that you have to pay $7.65. 25% off of the original price of $10 would make the price $7.50. Sorry if its a bit confusing but I hope that helps! 
8 0
3 years ago
Other questions:
  • Yea lol how do u do this
    14·1 answer
  • How do you determine each of the two expressions of the equation when the mathematical statement is given in words?
    5·1 answer
  • Look at Arnold's attempt to solve the equation for b:
    12·1 answer
  • #1) What is the most efficient way to isolate and solve for the variable? *
    5·2 answers
  • time it takes to fly from City A to City B a. Is the distance a baseball travels in the air after being hit a discrete random​ v
    8·1 answer
  • What is the domain of the ordered pairs shown in the graph?
    8·2 answers
  • If the cylinder above is similar to a second cylinder that has a radius of 10mm, what is the height of the second cylinder
    15·1 answer
  • What is 3(x-4)=12x extra letters because it says I need 25 or more
    6·1 answer
  • QUESTION IS DOWN BELOW WORTH 15 POINTS each
    15·2 answers
  • What is the midpoint of a line segment connecting the points (−4,6) and (8,2)?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!