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alexgriva [62]
3 years ago
11

Last month, mrs. Johnson received a phone bill for $26.86. If the company charges $0.17 per minute l, and there were no other ch

arges, how many minutes did mrs. Johnson use last month?
Mathematics
2 answers:
Artemon [7]3 years ago
8 0

Answer:

158

Step-by-step explanation:

kipiarov [429]3 years ago
4 0

Answer:

166

Step-by-step explanation:

28.26 = .17x

166.235294

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1.Given the lines shown here, what are two possible equations for this system of equations
ASHA 777 [7]

Answer:

Two possible equations:

y = x + 1\\y = x - 5\\

The system has 0 solution as parallel lines never cross each other.

Step-by-step explanation:

Considering the two lines are parallel, they both have the same slope.

let m be the slope of the two lines:

y = mx + y_{0}\\y=mx+y_{1}

y_{0}, y_{1} are the value on y axis where the two lines cross the axis.

Because the lines are parallel, there exists no point that lies on both lines, therefore the system has 0 solution.

8 0
3 years ago
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3 years ago
For positive integers $n$, let $f(n)$ return the smallest positive integer $k$ such that $\frac{1}{k}$ has exactly $n$ digits af
disa [49]

Answer:

There are a total of 2011 integer divisors.

Step-by-step explanation:

The only primes p such that 1/p has finite spaces after the coma are 2 and 5. If we divide a number with last digit odd we will obtain 1 extra digit after the decimal point and if we divide a number by 5 we will obtain 1 more digit if that number has a last digit in the decimal which is not a multiple of 5.

If we take powers of those primes we will obtian one more digit each time. In order to obtain more digits it is convinient to divide by a power of 2 instead of a power of 5, because the resulting number will be smaller.

If we want 2010 digits after the decimal point, we need to divide 1 by 2 a total of 2010 times, hence f(2010) = 2²⁰¹⁰, which has as positive integer divisors every power of 2 between 0 and 2010, hence there are a total of 2011 integer divisors of f(2010).

3 0
4 years ago
Kayla says that the point labeled C in the diagram below is the center, Raymond says that point C is the radius.
Eva8 [605]

Answer:

The answers D

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Can someone plz help 16x - 26c / x = ?
Lerok [7]

Answer:

-10c

Step-by-step explanation:

16x

-26c/x

-----------

-10c

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4 years ago
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