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
pishuonlain [190]
2 years ago
11

Can someone help me with this?

Mathematics
1 answer:
Roman55 [17]2 years ago
7 0

Answer:

Step-by-step explanation:

We first need to figure out how much money Jackie has since Pilar has the same amount of money, but in different coins. Jackie has 24 dimes and 13 quarters, so the amount of money is $2.40 + $3.25 = $5.65; therefore, Pilar has $5.65 also. In order to determine how many nickels and quarters Pilar has, we have to have a system of equations. It's up to us to write the equations we need to solve this. The first equation has to do with the NUMBER of coins Pilar has, the second has to do with the VALUE of each coin. We know that Pilar has only nickels and quarters and that she has a total of 53 coins. So the NUMBER equation is

n + q = 53

The VALUE equation relates how much each coin is worth to the total amount of money it equals:

.05n + .25q = 5.65.

Go back to the first equation and solve it for either n or q. I solved it for n:

n = 53 - q

Plug this into the second equation in place of n now to get:

.05(53 - q) + .25q = 5.65 and

2.65- .05q + .25q = 5.65 and

.20q = 3 so

q = 15. This means that there are 15 quarters. If there are 15 quarters, then there are

n + 15 = 53 nickels and

n = 38 nickels.

You might be interested in
A committee consisting of 3 faculty members and 5 students is to be formed. Every committee position has the same duties and vot
Lemur [1.5K]

Answer:

In 16170 ways the committee can be formed.

Step-by-step explanation:

3 faculty members and 5 students are required to form a committee.

The eligible to serve on the committee are 7 faculty members and 11 students.

If each committee position has the same duties and voting rights.

Then, the number of ways of selecting 3 faculty members out of 7 eligible faculty members is ^7C_{3} = 35.

Again, the number of ways of selecting 5 students out of 11 eligible students is given by ^{11}C_{5} = 462.  

Therefore, in (35 × 462) = 16170 ways the committee can be formed. (Answer)

5 0
3 years ago
Write three numbers that round to 400
Alex777 [14]
395, 390, 398 those are the numbers
8 0
3 years ago
Classify the scenarios based on whether they are observational studies, experimentsor surveys. Scenarlo A: Twenty employees of a
Alex777 [14]

Answer:

Scenario A: Survey

Scenario B: Observational Studies

Scenario C: Experiment

Scenario D: Survey

If it not the answer you can correct me

6 0
3 years ago
A rattlesnake is 2.44m long. How long is the snake in cm?
Dennis_Churaev [7]

Answer:

244 cm

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A number, n, is multiplied by -5/8. The product is -0.4. What is the value of n?
Advocard [28]
The answer is D. 16/25

-5/8 = -0.625

-0.4 divided by -0.625 = 0.64

0.64= 16/25
5 0
3 years ago
Other questions:
  • What's is the absolute value -18 degrees?
    9·2 answers
  • This is the last task​
    15·1 answer
  • Evaluate the related series,of each sequence<br><br> -9,-16,-23,-30,-37,-44
    8·1 answer
  • 2. JENNIFER IS TRYING TO SAVE MONEY. SHE WILL TAKE $150.00 TO
    6·1 answer
  • On a coordinate plane, parallelogram A B C D has points (3, 6), (6, 5), (5, 1), and (2, 2).
    6·1 answer
  • What is the area of the kite<br>​
    5·2 answers
  • The original price was $20, the sales price is $15. Is this an increase or decrease? What was the percent change?
    13·1 answer
  • Connect them plz and ty
    15·1 answer
  • Explain how you know whether 1/15 is equal a terminating decimal or
    6·1 answer
  • If the purchase price for a house is $218,500, what is the monthly payment if you put 3. 5% down for a 30 year loan with a fixed
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!