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Alexxx [7]
3 years ago
10

Maya purchased a prepaid phone card for$25. Long distance calls cost 9cent a minute using this card. Maya used her card only onc

e to make a long distance call. If the remaining credit on her card is 24.01, how many minutes did her call last?
Mathematics
1 answer:
andrew11 [14]3 years ago
4 0

Answer:

Her call lasted for 1 minutes.

Step-by-step explanation:

She bought a prepaid card ($25)

0.9 times 11 = 0.99

25 - 0.99 = 24.01

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They are equivalent because when they are both simplified they have the same answer 5

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Remember that a parallel line has the same slope...
So we already know the slope of the line containing point C is -4.

Using point slope equation, we can do...

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PLEASE HELP ME!!!!!!!
Airida [17]
<h3>Answer:</h3>

D. This is an experiment because it is applying a treatment

<h3>Step-by-step explanation:</h3>

Experiments and observational studies are both ways to find new information about a hypothesis but in different ways.

Vocabulary

First, to understand the question, let's define the key terms.

  • Experiment - An experiment is when a scientist purposely applies a treatment and interferes with a person's life in order to gather information.
  • Observational Study - This type of study attempts to study a person without interfering with their lives in any way.

These definitions eliminate the answer choices A and C because both of them match the incorrect definition of the term.

Experiment vs. Observational Study

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Step-by-step explanation:

1/2(a-9)=11

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a=22+9

a=31

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