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Mkey [24]
3 years ago
10

Jessica purchased a prepaid phone card for $25. Long distance calls cost 19 cents a minute using this card. Jessica used her car

d only once to make a long
distance call. If the remaining credit on her card is $16.26, how many minutes did her call last?
Mathematics
1 answer:
maxonik [38]3 years ago
5 0

Answer: 27.27 seconds?

Step-by-step explanation:

25 - 16.26 = 8.74

19/8.74 = 2.2 (Rounded up)

60/2.2 = 27.27

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-24x -15 = -27. Step by step explanation on how to solve this problem.
Jet001 [13]

Answer:

x = \frac{1}{2}

Step-by-step explanation:

Given

- 24x - 15 = - 27 ( add 15 to both sides )

- 24x = - 12 ( divide both sides by - 24 )

x = \frac{-12}{-24} = \frac{1}{2}

7 0
3 years ago
Read 2 more answers
Your sample is normally distributed with a mean age of 36. The standard deviation in this sample is 4 years. You would expect:
Nostrana [21]

Kindly find complete question attached below

Answer:

Kindly check explanation

Step-by-step explanation:

Given a normal distribution with ;

Mean = 36

Standard deviation = 4

According to the empirical rule :

68% of the distribution is within 1 standard deviation of the mean ;

That is ; mean ± 1(standard deviation)

68% of subjects :

36 ± 1(4) :

36 - 4 or 36 + 4

Between 32 and 40

2.)

95% of the distribution is within 2 standard deviations of the mean ;

That is ; mean ± 2(standard deviation)

95% of subjects :

36 ± 2(4) :

36 - 8 or 36 + 8

Between 28 and 44

3.)

99% is about 3 standard deviations of the mean :

That is ; mean ± 3(standard deviation)

99% of subjects :

36 ± 3(4) :

36 - 12 or 36 + 12

Between 24 and 48

3 0
2 years ago
Evaluate 8^<img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B3%7D" id="TexFormula1" title="\frac{5}{3}" alt="\frac{5}{3}" align
almond37 [142]

Answer:

Step-by-step explanation:

32 is the correct answer

6 0
2 years ago
Read 2 more answers
If you know it all good if you know half of it then I still accept that but please help!
astraxan [27]

Absolute value is how far away a number is from zero on the number line so -32 and 32 have the same absolute value and for number 2 i agree necause 30 is closer to zero than 32

7 0
3 years ago
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You are paying off a student loan in monthly installments. After
dem82 [27]

Answer:

The loan will be paid after 39 monthly installments.

Step-by-step explanation:

Since I am paying off a student loan in monthly installments, and after the 4th payment the remaining balance is $ 13,900, while after the 5th payment my remaining balance is $ 13,500, to determine the amount of payments in which the loan was agreed I must perform the following calculation:

13900 - 13500 = 400

400 x 5 = 2000

2000 + 13500 = 15500

15500/400 = 38.75

Thus, the loan will be paid after 39 monthly installments.

3 0
3 years ago
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