Question

a mass of 380 kg when divided in the ratio of 1:3:4 is?
the correct answer is 300 kg and 80kg. I need help with how to get this answer.

Answer 1

Let the ratio be 1x +3x + 4x = 380
8x = 380 , x = 380/8 = 47.5

Answer 2

HEY DEAR ... ✌

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Frist you have to create an equation. 

So the equation would be:

1x+3x+4x=380

 

your coefficients repsent the ratio. 

 

The next step is to combine like terms:

therefore 1x+3x+4x

becomes

8x

so the equation is now:

8x=380

The next step is to divide 8 on both sides. 

So (8x/8)=(380/8)

which leaves you with 

 x=47.5

now we plug x into:

1x which gives us 47.5

3x which gives us 142.5

4x which gives us 190

when you add these three together you get 380

 

therefore your answer is

47.5kg:142.5kg:190kg

HOPE , IT HELPS ... ✌