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lesya692 [45]
3 years ago
13

I will be marking brainliest for obvious reasons

Mathematics
1 answer:
Softa [21]3 years ago
4 0
48.10 = 40+0.45x
8.1 = 0.45x
x= 3.645
He has already used 700 minutes plus the additional minutes which is about 4
In total he used about 704 that month
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Express a decimal number ( ie 0.768) - process description please - as a rational number (96/125)?
Stels [109]

The decimal representation of any number is a linear combination of powers of 10. In other words, given a number like 123.456, we can expand it as

1\cdot10^2+2\cdot10^1+3\cdot10^0+4\cdot10^{-1}+5\cdot10^{-2}+6\cdot10^{-3}

10^{-n}=\dfrac1{10^n} for any n, so the above is the same as

100+20+3+\dfrac4{10}+\dfrac5{100}+\dfrac6{1000}=\dfrac{100000+20000+3000+400+50+6}{1000}=\dfrac{123456}{1000}

Similarly, we can write

0.768=\dfrac{768}{1000}

Now it's a question of reducing the fraction as much as possible. We have \mathrm{gcd}(768,1000)=8 so

\dfrac{768}{1000}=\dfrac{96\cdot8}{125\cdot8}=\dfrac{96}{125}

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Which ratios are equivalent to 3:1?
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Answer:

9:3;27:9;87:27

Step-by-step explanation:

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Is 1,2,3,4 a geometric sequence ?
Bad White [126]
No. It would be a arithmetic sequence
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What is the measure of Angle N M R?
hichkok12 [17]

Answer:

The correct answer is 63.

Step-by-step explanation:

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A ball is rolling at a rate of 3 ft per second toward a wall that is 33 feet away. Select all that apply to this situation.
vodomira [7]

Answer:

The y-intercept is 33ft. The ball is 33 feet away from the wall

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I took the test.

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