Ratios and proportions help needed

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Pimptatay

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Nov 16, 2019
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the problem is:
“Divide 84 into two(2) parts in the ratio 3:11.”

and so far I got the following
11/3=3.67
84/3.67=22.89
Therefore:
3.67:22.89 = 3:11

That right? Lol
 
Pimptatay said:
the problem is:
“Divide 84 into two(2) parts in the ratio 3:11.”

and so far I got the following
11/3=3.67
84/3.67=22.89
Therefore:
3.67:22.89 = 3:11

That right? Lol
Click to expand...
No!

What are the parts that you divided 84 into?
 
Pimptatay said:
Is this a guessing game to find the number?
I’m confused...
12 and 7?
Click to expand...
There is no guessing here! Simple algebra will do ...

Start with the two parts being (3*x) and (11*x) ........................ why?
 
Pimptatay said:
3x+11x=84
x=6

Therefore the other is 84/6=14
6:14 = 3:11
Click to expand...
our original problem was:

the problem is:
“Divide 84 into two(2) parts in the ratio 3:11.”

You are splitting 84 into two parts. What are the two parts?
 
This is hurting my brain. I’m obviously not that smart or I’m over thinking this
 
Pimptatay said:
84/2=42!
Click to expand...
the problem is:
“Divide 84 into two(2) parts in the ratio 3:11.”

If you divide 84 into 42 and 42 - the ratio of those two parts 1:1 no 3:11 as reqiured by the problem.

Study response #5 where we suggested that the two parts are 3x and 11x and you found x = 6
 
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