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
SVEN [57.7K]
2 years ago
11

explain how the number of text messages Dario sent and the cost form an arithmetic sequence. Then write an expression to find Da

rio's text messaging bill if he sends N text messages over 250
Mathematics
2 answers:
Dovator [93]2 years ago
8 0
For less than or equal to 250 text messages Dario pays $5.00. After that, for every additional text message he pays $0.15.It means that the number of additional text messages ( n = 1, 2, 3, ... ) and the cost: ( c1 = $5.15,  c2 = $5.30,  c3 = $5.45, ... ) form an arithmetic sequence.An expression for the bill Dario must pay if he sends more than 250 text messages is:C = 5.00 + n · 0.15For example, if he has 260 text messages: 260 - 250 = 10C (260) = 5.00 + 10 · 0.15 = 5.00 + 1.50 = $6.50  
Mnenie [13.5K]2 years ago
6 0

Answer:

Step-by-step explanation:

Given that upto 250 messages Dario sent there is a fixed rate say C=5

i.e. even if Dario sends 1 message Dario has to pay C

After 250 messages for each additional message 0.15 has to be paid

This means for 251 , 5.15

252, 5.30

253, 5.45 and so on.

Hence this forms an arithmetic sequence with starting at 5 and common difference 0.15

You might be interested in
Create your own real-world problem that uses either a two-step equation or two-step inequality to solve. Based on your real-worl
zhuklara [117]
Libby wants to make cookies for her whole class. There are 36 students in her class. The recipe Libby is going to use only makes 12 cookies. How many batches of cookies is Libby going to have to make to feed her whole class?
36/12
3 0
3 years ago
A = bh/2
Sliva [168]
To find A' they used the rule of multiplication, which is:

the derivative of a product of two terms is the first term times the derivative of the second term plus the second term times the derivative of the first.

To find b' they just isolated b'


6 0
3 years ago
2
Gemiola [76]

9514 1404 393

Answer:

  • 14 nickels
  • 6 dimes

Step-by-step explanation:

The system of equations can be written ...

  n + d = 20 . . . . . . . . coins in the jar

  5n +10d = 130 . . . . . value in cents

_____

Using the first equation, we can write an expression for n:

  n = 20 -d

We can substitute this into the second equation:

  5(20 -d) +10d = 130

  100 +5d = 130 . . . . . . simplify

  5d = 30 . . . . . . . . . . . . subtract 100

  d = 6 . . . . . . . . . . . . divide by 5

  n = 20-d = 14

The jar contains 14 nickels and 6 dimes.

7 0
2 years ago
Tom needs to buy fabric to make aprons for his wood shop. Each apron will be 1/2 feet long and 3 feet wide. We need to make 9 ap
Shalnov [3]
Given that he needs to buy some fabric for his wood shop and that each apron is 1/2 feet long and 3 feet wide, this means that the whole fabric that he needs is a total of 4.5 feet long and 27 feet wide. We cannot determine how many pieces of fabric he needs since the measurement of the fabric sold is not specified in the problem.
7 0
3 years ago
Proportional relationships help pls
Tju [1.3M]

Answer:

 

Propotional Means corresponding in size, degree, or intensity. b : having the same or a constant ratio corresponding sides of similar triangles are proportional.

8 0
3 years ago
Other questions:
  • HELLO HELP ME PLEASE IT'S REALLY URGENT!!!!!!! TT
    5·1 answer
  • Today, Nate has 100 bananas. He will eat 2 of them every day.
    7·2 answers
  • 1.
    12·1 answer
  • Convert 7/11 to a percent. round the answer to the nearest hundredth
    13·1 answer
  • Steven wants to keep track of how many miles he walks in a year. He expects to walk 5 miles per day, and he has
    9·1 answer
  • What is 3/4 ÷ 1/6? Please help !......
    5·1 answer
  • Aubrey bought 5 packs of stickers each with 30 stickers. Izzy bought 4 packs,
    14·1 answer
  • Simplify the following expression.
    9·2 answers
  • How do you message people on brainly?​
    5·2 answers
  • Solve the following triangle angles
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!