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
ahrayia [7]
3 years ago
13

LONG DISTANCE For Meg’s long-distance calling plan, the monthly cost C in dollars is given by the linear function C(t) = 6 + 0.0

5t, where t is the number of minutes talked.
a. What is the total cost of talking 8 hours? of talking 20 hours?
b. What is the effective cost per minute (the total cost divided by the number of minutes talked) of talking 8 hours? of talking 20 hours?

I really need help
Mathematics
1 answer:
Neko [114]3 years ago
5 0

Answer:

Step-by-step explanation:

The monthly cost is C(t) = 6 + 0.05t, where t is the number of minutes talked.

Talking for 8 hours would cost C(t) = 6 + 0.05(8), or $6.40;

Talking for 20 hours would cost C(20) = 6 + 0.05(20), or $7.00.

The effective cost per minute in the first case is $6.40/8 min = $0.80/min, and that in the second case is $7.00/20 min = $0.35/min

You might be interested in
Brandon is putting a rectangular fence around his garden to keep the animals from stealing his vegetables. The perimeter of the
soldi70 [24.7K]
Just use teh same numbers as the perimeter and times it by 7 and 5
3 0
3 years ago
Mallory works 20 hours a week as a website designer and earns $42.50 per hour. If Mallory saves
AleksandrR [38]
If Mallory makes $42.50 per hour and she works 20 hours a week, we multiple those two and we get:

42.5 * 20 = 850

So she earns $850 per week.

Mallory saves half of that amount she would have $425 per week.

In 4 weeks she would have:

425 * 4 = 1700

Mallory will save $1,700 in four weeks.
3 0
3 years ago
Read 2 more answers
A quadratic function has zeros -7 and 9. What are the linear factors of the function?
garik1379 [7]

Answer:

(x+7)(x-9) = 0

Step-by-step explanation:

x + 7 = 0

x = -7

x - 9 = 0

x = 9

4 0
3 years ago
Are the fractions 1/5 , 5/5 , and 5/1 equivalent?Explain.
Debora [2.8K]
No, these equations are not equivalent. 

1/5, or one fifth, is part of a whole. Imagine you have a pie, cut into five pieces, and your friend comes over and eats four pieces, so now you have one of the five original pieces. That's what you have here. 

5/5, or five fifths, is a whole. any number divided by itself is automatically one, so it is like making another pie and cutting it into five pieces, only this time no one eats any of it because it's burned or something. At the end, you have five pieces of pie

5/1 is actually just another way of writing plain old 5. To keep the pie example rolling, you have five pies, and no one eats any of these either, so they are all yours. You have 5 pies divided between one person, so at the end of the day you have 5 whole pies. 

Hope that helped!
7 0
3 years ago
Read 2 more answers
If f(x)=2x-1 and g(x)=-2find [g f](x)
NeX [460]

Answer:

f(−2)=−5

g(2x−1)=−2

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Selesaikanlah pertidaksamaan nilai mutlak berikut!<br> [3-2x]&lt;4
    14·1 answer
  • Based on the graph, which statement BEST describes what is happening to the temperature over time?( picture 1 )
    9·1 answer
  • An aircraft has a total time in service of 468 hours. The Airworthiness Directive given was initially complied with at 454 hours
    7·1 answer
  • Which graph models the function f(x)=-2(3)^x
    13·2 answers
  • Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each expression to its equivalent f
    14·1 answer
  • A cow heart beat 325 in 5 minutes. about how many times does a cow's heart beat in 2 minutes?
    5·1 answer
  • Someone plz help I already know the answer put how can I put the diagram can you guys help me can u put the picture how u did it
    12·1 answer
  • SOMEONE PLEASE HELP ME...
    11·1 answer
  • Select the sentence that has no punctuation or capitalization errors.
    6·2 answers
  • Prove x²+y² = (x+y) (x-y)​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!