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
Alekssandra [29.7K]
3 years ago
9

Kala purchased a prepaid phone card for $15. Long distance calls cost $12 a minute using this card. Kala Use her card only once

to make a long distance call. If the remaining credit on her card is $10.68, How many minutes did her call last?
Mathematics
1 answer:
irina [24]3 years ago
4 0

Kala call lasted for 0.36 minutes

<em><u>Solution:</u></em>

Given that Kala purchased a prepaid phone card for $15

Long distance calls cost $12 a minute using this card.

If the remaining credit on her card is $10.68

To find: Number of minutes her call lasted

Let "x" be the number of minutes her call lasted

Cost of 1 minute = $ 12

Total balance = $15

Remaining balance = $ 10.68

So we can frame a equation as:

Total balance = Remaining balance + Cost of 1 minute x number of minutes her call lasted

15 = 10.68 + 12 \times x\\\\15 - 10.68 = 12x\\\\4.32 = 12x\\\\x = 0.36

So her call lasted for 0.36 minutes

You might be interested in
Which statement is true about the labeled function? F(x) &lt; 0 over the Interval (-infinity, -4)
SpyIntel [72]

Answer:

4

Step-by-step explanation:

4 0
3 years ago
A physician's assistant measures a child and finds his height is 41 in.
Ludmilka [50]

Answer:

He grew 4 inches since his last visit.

Step-by-step explanation:

41 - 38 = 4

3 0
3 years ago
What is the varible of -10 = xy +z for x
Verdich [7]

The variable is y

Z is a constant.

4 0
3 years ago
Select all expressions that are equivalent to 8(t+4)
monitta
8t+32 is one expression equivalent to that.
5 0
3 years ago
Distributing property and combining like terms <br> -10(1-3x)-10
ikadub [295]

Answer:

-20 + 30x

Step-by-step explanation:

-10(1) = -10

-10(-3x) = 30x

new equation

-10 + 30x -10

-10 + -10 = -20

-20 + 30x

7 0
3 years ago
Other questions:
  • A box of marbles can be shared equally among 6,7, or 8 students with 4 marbles left over each time. what is the least possible n
    10·1 answer
  • The grocery store sells kumquats for $4.75 a pound and Asian pears for $3.00 a pound . Write an equation in standard form for th
    6·1 answer
  • Create your own quadratic function in standard form with a Y intercept is 9
    12·1 answer
  • How would I solve for x?
    5·1 answer
  • Solve 4,123 ÷ 78 two different ways using partial quotients.
    15·1 answer
  • 1-5 or as many as you can please
    15·1 answer
  • Which graph shows the solution to the following inequality. -5c+2&lt;27
    12·1 answer
  • Which line segment is an altitude of ΔVWY?
    11·1 answer
  • The student did this problem wrong, explain what is wrong and fix their mistake to give me the correct answer.
    7·2 answers
  • What is the area of a regular pentagon if its apothem has a length of 4 feet and each side has a length of 5.8 feet?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!