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
Firlakuza [10]
3 years ago
13

A phone company charges 15.99 a month and 9 cents for every minute above 130 minutes. Write an expression for the monthly phone

charge, P, in dollars, as afunctionof the number of minutes, m, used that month.
Mathematics
1 answer:
kolbaska11 [484]3 years ago
5 0

Answer:

p=\left \{ {{15.99,m[tex]\leq130} \atop {15.99+0.09*(m-130),m>130}} \right.[/tex]

Step-by-step explanation:

We will have a partial funcion to define an expression for the monthly phone charge, because we have a condition that changes the monthly cost.

For months under 130 minutes, there will not be any additional charge other that tha base monthly cost, so the expression for the months under 130 minutes will be the monthly fee.

For months over 130 we will have the same information than above, but we have to add a fee for every minute over 130 minutes. To find the amaunt of minutes over 30 minutes we will just subtract 130 to the amount of minutes used: (m-130). Then we will multiply that number times the cos of each minute over 130 minutes: 9*(m-130). Finally we will add the basic phone fee: 15.99 + (0.09*(m-130)).

Now we set the conditions and use the correct notation for a partial function and we get:

p=\left \{ {{15.99,m[tex]\leq130} \atop {15.99+0.09*(m-130),m>130}} \right.[/tex]

You might be interested in
Which of those is an example of numerical data ? A. Average speed b. Type of pet C. Favorite car d.home state
garri49 [273]
Average speed the others are categorical.
7 0
3 years ago
BRAINIEST TO WHOEVER RIGHT
adoni [48]

Answer:

i know b only Sorry hope this helps tho

Step-by-step explanation:

its 4 because each space is 25% no matter how big or small it is. so if you land on -9 to -5 thats 25% and to -2 thats another 25% total 50% its asking for 75% so you go one more which lands on 4 making it 75%

5 0
3 years ago
Read 2 more answers
Can someone please help me with math
DaniilM [7]

Answer:

B

Step-by-step explanation:

they want us to find the equation in slope intercept form

which is y= mx + b

where m = slope and b = y intercept

the slope is change in y over change in x

as y goes up 1 x goes up 1 so the slope is 1 or m=1

the y intercept is at point (0,1)

so the y intercept is 1

now we add it all together and get that the equation Is

y=x+1

8 0
3 years ago
The area of a rectangle is greater than 60 ft. The width of the rectangle is 2x - 3 ft and the
34kurt

Answer:

Inequaliy: 2x-3(12)>60

X>48

Step-by-step explanation:

Since area of a rectangle is W(L)=A

The inequality given right here including length And width and area Plugged in would be

2x-3(12)>60.  (It’s >60 because the area stated in the problem said to be greater then 60 so we put a Greater then sign)

Combine like terms and solve

2x-36>60

Add 36 on both sides

2x>96

Divide 2 on both sides to isolate variable

x>48

Check:

2(50)-36>60 ( I used 50 because it’s greater then 48 and it’s a easy number to work with for just a check)

solve:

100-36>60

64>60✔️

7 0
3 years ago
Maria walks a round trip of 0.75 mile to school every day how many miles will she walk in 4.5 days
SSSSS [86.1K]
You multiply .75 and 4.5. 

6 0
4 years ago
Other questions:
  • Does anyone know this?
    10·2 answers
  • Given the function f(x)=-3x^3+9x^2-2x+3 what part of the function indicates that the left end starts at the top of the graph
    11·1 answer
  • A group of students forgot to add thiosulfate to one test tube> what will they observe?
    14·1 answer
  • (x4- 4x2 + 5x - 1) = (x + 2)<br> Solve using remainder Therom
    12·1 answer
  • 2.
    15·1 answer
  • What value of n is needed to make the statement true?
    10·1 answer
  • 5a+5-3a=13 i needed to make it 20 charatcers
    6·2 answers
  • What is the distance between the following points?
    12·2 answers
  • Help!!!<br> Find the domain of the function. Write the answer in interval notation.
    8·1 answer
  • Help me please I don’t know the answer
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!