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
guapka [62]
3 years ago
9

Fred has a bag of coin with only nickels and quarters. He got $20 by

Mathematics
1 answer:
Sedbober [7]3 years ago
5 0

Answer:

75 quarters 25 nickels

Step-by-step explanation:

q=quarters n=nickels

q+n=100   n=100-q

0.25q +0.05(100-q)=20

From now I will multiply  by 100 to avoid decimals

25q + 5(100-q)=2000

20q=1500

q=75       n=25

75*0.25= 18.75

25*0.05=1.25

18.75+1.25=20

You might be interested in
3. A telephone calling center performs two types of solicitations: (1) donations and (2) sales. The center wants to determine ho
zzz [600]

Answer:

hang ups the receiver

Step-by-step explanation:

In this case, there is a difficulty for the call center to determine the average time that each caller spends on each type of request, since there is also the possibility that the recipient will not be interested in the call or hang up when receiving such a call. Therefore, in order to calculate this average in a more real way, the company must statistically monitor this data in relation to each hour of work and how many situations occurred in that hour, how many calls received were answered, how many received a busy signal, how many are not answered and how many calls last less than a minute if the recipient is not interested or hangs up.

Through this data, the company is able to monitor the calls and define telephone service strategies that can retain the customer more if the calls in less than a minute exceed conventional calls.

3 0
3 years ago
How many months quicker will a $600 dollar interest double at an 8% interest rate compared to a 5% interest rate?
tigry1 [53]

Answer:alkjfldks;ajfla;ksdjf;ladskjf;lkadsj

Step-by-step explanation:

6 0
2 years ago
Which of the following best describes the slope of the line below?
defon

Answer:

I think positive

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Evaluate the algebraic<br> expression:<br> Plz answer quick
Andrew [12]

Answer:

7,-5,-11

Step-by-step explanation:

-3(-4)-5=7

-3(0)-5=-5

-3(2)-5=-11

5 0
3 years ago
Jen needs to save $180 for a new camping tent. She is able to save $9 each week. How many weeks will Jen need to save to reach h
Lyrx [107]
20 weeks long all you have to do is to 180\9
3 0
3 years ago
Other questions:
  • Y = 4
    5·2 answers
  • What's the pattern for 1,3,5,7,5,3,1,3
    5·1 answer
  • In the video, I drop a ball off a three-story balcony. We know that objects in freefall follow the equation for height h, in
    7·1 answer
  • I need a good website to get sheets off of
    10·1 answer
  • Determine the zeros of the function x2 - 9 = 0
    15·1 answer
  • Which of these equations have no solution? Check all thal apply.
    5·2 answers
  • What is a scale copy of 12 cm by 3 cm
    12·1 answer
  • If p/q is a rational number then p cannot be equal to 0<br> true or false please fast urgent.......
    14·1 answer
  • Katie is comparing the prices of packages of paper cups. One brand costs c dollars and contains 80 cups per package. Another bra
    8·1 answer
  • The Spanish club is selling plates of food as a fundraiser. A plate with 2 tacos, 2 cheese enchiladas, and 1 tamale costs $8.50.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!