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
Lostsunrise [7]
3 years ago
15

A wireless phone plan costs Eric $35 for a month of service during which he sent 450 text messages. If he was charged an fixed a

fee of $12.50, how much did he pay per text?
Mathematics
1 answer:
Taya2010 [7]3 years ago
4 0

Answer:

5 cents

Step-by-step explanation:

Let m = cost per message

450m + 12.5 = 35    subtract 12.5 from both sides

450m = 35-12.5

450m = 22.5           divide both sides by 450

m = 22.5/450

m = .05

The cost is $.05 per message  ... 5 cents

You might be interested in
Help immediately!!!!! What is the average rate
Snezhnost [94]

Answer:

the average rate of change is 4

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The coordinates of the vertices of right triangle SUE are S(6, 0), U(0, 8), and E(0, 0). What are the coordinates of the midpoin
Irina-Kira [14]
SE is hypotenuse so with having <span>coordinates of S and E we can say midpoint is (6+0/2,8+0/2)=(3,4)
i really don't know what are those options </span>
3 0
3 years ago
Use the given graph of f to estimate the intervals on which the derivative f ' is increasing or decreasing. (Enter your answers
NARA [144]

The derivative of a function is used to determine whether the function is increasing or decreasing on any intervals in its domain.

Derivative of function f is increasing in interval  (-2 , 1) and (3 , 6)

Derivative of function f is decreasing in interval (1 , 3) and (6 , 9)

If f′(x) > 0 at each point in an interval , then the function is said to be increasing in that interval.

If f′(x) < 0 at each point in an interval , then the function is said to be decreasing on that interval.

By observing graph, it is observed that slope  of function f is positive in interval  (-2 , 1) and (3 , 6) . Hence, derivative of  function f is increasing in interval  (-2 , 1) and (3 , 6)

By observing graph, it is observed that slope  of function f is negative in interval  (1 , 3) and (6 , 9) . Hence, derivative of  function f is decreasing in interval  (1 , 3) and (6 , 9).

Learn more:

brainly.com/question/14330051

5 0
1 year ago
Find the sumofthe geometrical progression of five terms, of which the first term is 7 and the multiplier is 7.Verify that the su
777dan777 [17]

Answer:

The sum of first five term of GP is 19607.

Step-by-step explanation:

We are given the following in the question:

A geometric progression with 7 as the first term and 7 as the common ration.

a, ar, ar^2,...\\a  = 7\\r = 7

7, 7^2, 7^3, 7^4...

Sum of n terms in a geometric progression:

S_n = \displaystyle\frac{a(r^n - 1)}{(r-1)}

For sum of five terms, we put n= 5, a = 7, r = 7

S_5 = \displaystyle\frac{7(7^5 - 1)}{(7-1)}\\\\S_5 = 19607

The sum of first five term of GP is 19607.

Verification:

2801\times 7 = 19607

Thus, the sum is equal to product of 2801 and 7.

7 0
3 years ago
What is 36-8z by factoring
tatyana61 [14]

Answer:

z=9/2

Step-by-step explanation:

36-8z=0

36=8z

z=36/8

z=9/2

8 0
2 years ago
Other questions:
  • 9. Seven less than twice a number is 43 Equation: Solution
    11·1 answer
  • Loss of traction to the rear tires can result in __________ .
    10·2 answers
  • What is the absolute value of the complex number -4 -√2i ?
    14·2 answers
  • Solve the following system of equations by using the substitution method.
    6·2 answers
  • the temperature dropped 25. Then the temperature went up 17. Let t represent the beginning temperature. Write an expression to s
    10·2 answers
  • The formula v= u+ atdescribes connections between u: starting velocity a: acceleration t: time v: final velocity a)In a particul
    7·1 answer
  • What is question a????
    9·1 answer
  • (-1/2 + 5/2) + a =0 solve for a
    9·2 answers
  • Help me with this please !
    13·2 answers
  • The numbers of cookies in a shipment of bags are normally distributed, with a mean of 64
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!