patbatE21

A recipe requires 3 ingredients A, B, C in the volume ratio 2:3:4. If 6 pints of ingredient B are required, how many pints of ingredients A and C are required?

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Walleye

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2A = 3B = 4C

Walleye

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do you understand my hint?

patbatE21

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2A = 3(2) = 4C

patbatE21

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therefore A & C are 2 as well?

Walleye

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if a= 2 and c =2 then
4 = 6 =8 ?????

patbatE21

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Ok they aren't equal

patbatE21

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I only know B=6 and I can use 2(3) to make A but there is no way for C

Walleye

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4C = 6
solve for C

patbatE21

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oh

patbatE21

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1.5

Rogonic

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this is how I would do it:
THe ratio for B is 3, but you need 6 pints. This required multiplying by 2.
therefore you multiply the A and C portions by 2 as well.
So A is 4 pints and C is ?

Rogonic

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Or
2:3:4
= ? :6: ?
look at the pattern.

Rogonic

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I'm afraid Walleye has misled you a little.
It is not true that 2A=3B=4C, though it is a common mistake.

patbatE21

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So A =4 and C=8

Rogonic

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Yes

patbatE21

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Thanks