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atroni [7]
3 years ago
15

Teresa purchased a prepaid phone card for $20. Long distance calls cost 16 cents a minute using this card. Teresa used her card

only once to make a long
distance call. If the remaining credit on her card is $14.72, how many minutes did her call last?
II minutes
Mathematics
1 answer:
shtirl [24]3 years ago
8 0

Answer:

33 minutes. 20- 14.72=5.28

Step-by-step explanation:

20- 14.72=5.28. then divide 5.28 by .16(cents per minute) to get 33 minutes

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Write 0.0002839 in scientific notation.
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Answer:2.84 x 10-4

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8 0
3 years ago
Read 2 more answers
The vector ab has a magnitude of 20 units and is parallel to the<br> vector 4i + 3j.<br> find ab.
stepladder [879]

The vector ab has a magnitude of 20 units and is parallel to the

vector 4i + 3j. Hence, The vector AB is 16i + 12j.

<h3>How to find the vector?</h3>

If we have given a vector v of initial point A and terminal point B

v = ai + bj

then the components form as;

AB = xi + yj

Here, xi and yj are the components of the vector.

Given;

The vector ab has a magnitude of 20 units and is parallel to the

vector 4i + 3j.

magnitude

\sqrt{4^2 + 3^2} \\\\\sqrt{16 + 9} \\\\= 5

Unit vector in direction of resultant = (4i + 3j) / 5

Vector of magnitude 20 unit in direction of the resultant

= 20  x (4i + 3j) / 5

= 4 x (4i + 3j)

= 16i + 12j

Hence, The vector AB is 16i + 12j.

Learn more about vectors;

brainly.com/question/12500691

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7 0
2 years ago
I just need help solving this problem. Also please don't put the answer into a file because I can't open them. It's also really
Pavlova-9 [17]

Answer:

The value of x is 27

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5 0
2 years ago
Find two consecutive odd integers such that 65 more than the lesser is four times the greate
lyudmila [28]
Let the lesser number be x  and y the greater. Then

x + 65 = 4y ,  Also

y - x =  2
Adding:-

y + 65 = 4y + 2
63 = 3y
y = 21
and
x = 21-2 = 19

Answer the 2 odd numbers are 19 and 21.


8 0
3 years ago
I’ll give the Brainliest to who answers this question with a reasonable explanation.
Lyrx [107]
$40/12 = unit rate simplify = 10/3
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2 years ago
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