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steposvetlana [31]
2 years ago
5

Is 6.584 a rational number?

Mathematics
1 answer:
Dmitry_Shevchenko [17]2 years ago
8 0

Answer:

Step-by-step explanation:

To get rid of the decimal point in the numerator, we count the numbers after the decimal in 6.584, and multiply the numerator and denominator by 10 if it is 1 number, 100 if it is 2 numbers, 1000 if it is 3 numbers, and so on.

Therefore, in this case we multiply the numerator and denominator by 1000 to get the following fraction:  6584 / 1000

Then, we need to divide the numerator and denominator by the greatest common divisor (GCD) to simplify the fraction.

The GCD of 6584 and 1000 is 8. When we divide the numerator and denominator by 8, we get the following:  823 / 125

Therefore, 6.584 as a fraction is as follows:  823 / 125

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Jim, Dan and David share some sweets in the ratio 3:1:5. Jim gets 21 sweets. How many more sweets does David get over Dan?
nadezda [96]

Answer:

David gets 28 more than Dan

Step-by-step explanation:

Jim: Dan : David: total

3   :    1    :  5       : 3+1+5 = 9

Jim gets 21

21/3 = 7

Multiply each number by 7

Jim: Dan : David: total

3*7 :  1*7  :  5 *7  :  9*7

21  :   7     :  35   :  63

David has 35 and Dan has 7

35-7 = 28

David gets 28 more than Dan

8 0
3 years ago
3x - y = 7
Nastasia [14]

Answer:

C) -3x=-3

Step-by-step explanation:

When you subtract the 3x-y=7 from 6x-y=10, you will receive the following equation:

3x-6x-y-(-y)=7-10

-3x-y+y=-3

-3x=-3

As we can see, this equation matches the one in option C, meaning that it's our answer!

6 0
2 years ago
What is the equation of the line that passes through the point (-2, 0) and has a slope of -2?​
liq [111]

Answer:

y=-2(x+2)

Step-by-step explanation:

plug in(-2,0) into y-y1=m(x-x1)

y=m(x+2)

slope =m=-2

y=-2(x+2)

8 0
2 years ago
How do you divide 85 and 5?
AVprozaik [17]
Division is like sharing so 85 things that are shared between 5 people
85÷5=17 that is how much each person gets
so 17 is your answer
5 0
2 years ago
Read 2 more answers
The phrase ''the difference between a number and 5'' can be written as which variable expression flash cards
natulia [17]
X-5 and what are the flash cards do you mean? 
5 0
3 years ago
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