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
AURORKA [14]
3 years ago
13

The AT&T phone company charges $.15 per minute for long distance calls. sprint phone company totals your phone usage of each

month and round the number of minutes up to the nearest 15 minutes and then charges $7.90 per hour of phone usage dividing discharge into 15 minute segments. you make five hours and three minutes worth of long distance calls this month while using the company with the lower price, how much will these calls cost?
Mathematics
1 answer:
Stells [14]3 years ago
4 0
Idky .. sorry I just need points
You might be interested in
What is the answer to 3/7w-11=4/7w
sladkih [1.3K]
For this equation first you should add +11 on both sides and the add -4/7w so you will have: 
3/7w- 4/7w = 11 ⇒ -1/7w = 11 ⇒ w = 11* -7 = -77 so the answer is:
w = -77 :)))
i hope tis is helpful 
have a nice day 
6 0
3 years ago
A pigpen is to be enclosed using 640 m of fencing along three of its sides, the fourth side being a barn. Determine the dimensio
Basile [38]

Answer:

W_{max}=480m\\ L_{max}=160m

Step-by-step explanation:

Since we know we only have 640 feet of fence available, we know that L + W + L = 640, \implies 2L + W = 640. This allows us to represent the width, W, in terms of L: W = 640 – 2L

Remember, the area of a rectangle is equal to the product of its width and length, therefore,

A_{\rm pigpen}=L(640-2L)\implies 640L-2L^2

Notice that, quadratic has been vertically reflected, since the coefficient on the squared term is negative, so the graph will open downwards, and the vertex will be a maximum value for the area.

recall,

  • x_{max}=-b/2a
  • f(x)_{max}=f(x_{max})

Since our function is A(L)=640L-2L², we get

  • a=-2
  • b=640

plug in the value of a and b into the first formula:

L_{max}=-(640)/2(-2)\implies 160

A(L)_{max}=640(160)-2(160)^2\implies 76800

hence,the dimensions of the pen that will maximize the area are<u> </u><u>L=</u><u>1</u><u>6</u><u>0</u><u>m</u><u> </u>and<u> </u><u>W=</u><u>7</u><u>6</u><u>8</u><u>0</u><u>0</u><u>/</u><u>1</u><u>6</u><u>0</u><u>=</u><u>4</u><u>8</u><u>0</u><u>m</u>

and we're done!

3 0
3 years ago
What is five ninths plus four sixths
Minchanka [31]

Answer: 1.22222222222

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How does using a model help me multiply decimals by whole numbers?
valkas [14]
Counting them it simple
5 0
3 years ago
Tonya has 39 packages. Each package weighs 6 pounds. Choose the best estimate of the total weight of the packages.
Sidana [21]

Step-by-step explanation:

If were estimating, 39 is pretty close to 40 and 40x6 is 240 pounds. if we are getting exact about it, then 234 pounds

5 0
3 years ago
Other questions:
  • Do you know when to choose an estimate or an exact amount?
    11·1 answer
  • Find the Solution using Elimination Method.<br><br>Y= ×+6<br>Y=-5×-18
    11·1 answer
  • there is one plane that leaves from the city to the ski resort every hour. the first plane leaves at 10 the last plane leaves at
    5·1 answer
  • Least to greatest. <br> -5, 1 1⁄5, -5 3⁄4, 5⁄12
    6·1 answer
  • Using the graph, determine the
    8·1 answer
  • When using the formula P + 1 you are looking for
    9·1 answer
  • Last one pls help for brainlest
    10·2 answers
  • ILL GIVE BRAINLY THING
    11·1 answer
  • Hi, may someone help me with this?
    8·1 answer
  • Please Help! Will Give Brainlest! Locks In an Hour! Please try again if brainly Deletes your Answer!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!