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butalik [34]
3 years ago
13

What is the answer the proprtion m+12/9m=5/9

Mathematics
1 answer:
Delvig [45]3 years ago
7 0
(m + 12) / 9m = 5 / 9
cross multiply
(5)(9m) = 9(m + 12)
45m = 9m + 108
45m - 9m = 108
36m = 108
m = 108/36
m = 3 <==
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Select the equations that are correct.mark all that apply.
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Step-by-step explanation:

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Solve for x<br> 2/(7x) = 6/5<br><br> 5/21<br> -21/5<br> 21/5<br> I don't know<br> - 5/21
djverab [1.8K]
The answer is:  [A]:  " \frac{5}{21} " .
________________________________________
Given: 

2/ (7x) = 6/5; 

→  (6/5) * (7x) = 2 ; 

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x = \frac{5}{21} ;

→  which is:  Answer choice:  [A]:  " \frac{5}{21} " .
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7 0
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What do you mean by this ?
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