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
Amiraneli [1.4K]
2 years ago
10

Trudy bought a $20 prepaid long distance phone card. for every minute that she talks, $0.25 is deducted from her card. The funct

ion f(m)=20-0.25m represents the amount of money f(m) she has left after talking m minutes.FInd the zero and explain what it means in the context of the situation.
Mathematics
1 answer:
Aleksandr-060686 [28]2 years ago
3 0

Answer:

Step-by-step explanation:

Given the function f(m)=20-0.25m to represent the amount of money f(m) she has left after talking m minutes, the zero of the equation can be gotten by setting f(m) to 0

f(m)=20-0.25m

0 =20-0.25m

-20 = -0.25m

m = -20/-0.25

m = 80

Hence Trudy will have talked for 80minutes if she has no money left

You might be interested in
How many hours is 3200 seconds <br><br> 3200 s =_____hrs
dezoksy [38]

Dividing by 3,600

1

Determine the number of seconds you have. This information should be given, or it should be a figure you calculated yourself.

For example, you might be converting 2,400 seconds into hours.

ivide the number of seconds by 3,600. Note that there are 3,600 seconds in one hour.[1] So, if you have more than 3,600 seconds, your conversion will be greater than  hour. If you have less than 3,600 seconds, your conversion will be a fraction of an hour.

3

Convert your decimal to minutes. This step is helpful if you are working with a number of seconds equal to less than an hour, so that you can gauge how long a certain decimal is. To convert the decimal to minutes, multiply it by 60.[2]

3200 seconds = 0.88888889 Hours

(rounded to 8 digits)

6 0
2 years ago
Read 2 more answers
HELPP PLEASE ASAP Use the Pythagorean theorem to find the missing length in the right triangle
qwelly [4]

Answer:

c = 10

Step-by-step explanation:

The pythagoras theorem :

a² + b² = c²

a = 6 and b = 8

6² + 8² = c²

36+64 = c²

100 = c²

c = √100

c= 10

Hope this helped and brainliest please

3 0
2 years ago
Help or don’t if so thank you
NikAS [45]

Answer: 12.60 per CD

Step-by-step explanation:

Tax 0.80 * 3 = 2.40

40.20 - 2.40 = 37.80

37.8 / 3 = 12.60

5 0
2 years ago
Find the value of x in each figure <br><br>​
Ronch [10]

Answer:

X is 50

Step-by-step explanation:

3 0
2 years ago
In zanders class,80% of the students are girls. There are 24 girls in the class. What is the total number of students in Zander'
lana [24]

Answer:

A. 30

Step-by-step explanation:

30*.08=24

5 0
2 years ago
Other questions:
  • Classify the number 0. Check all that apply.
    11·1 answer
  • Please help me with this!!!
    7·1 answer
  • Find the perimeter of the figure rounded to the nearest tenth
    5·1 answer
  • How many thousandths in 5.08
    8·1 answer
  • 11. If triangle ABC is an isosceles triangle and triangle DBE is an equilateral triangle, find each missing
    7·2 answers
  • What is an equation of the line that passes through the points (−5,−7) and (5,1)?
    6·1 answer
  • HELP PLZ ALGEBRA NEED A GOOD GRADE I AM STRUGGLING WITH THIS QUESTION BASIC 9th GRADE
    14·1 answer
  • How much money did he raise?<br> THIS IS DUE IN A HOUR
    14·2 answers
  • PLEASE HELP!! NO LINKS!!
    6·1 answer
  • On a family road trip, Mr. Peters travels 130 miles in 2 hours. At this rate, how many miles will he travel in 30 minutes? (HINT
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!