Question

Find the ratio a:b, if it is given that ... a+b=3a

Answer 1

The ratio of a : b is 1 : 2

Step-by-step explanation:

A ratio is a relationship between two numbers indicating how many times the first number contains the second number

Ex: If there are eight oranges and six bananas, then the ratio of oranges to bananas is eight to six, and is written as 8 : 6, which is equivalent to the ratio 4 :3 in its simplest form

∵ a + b = 3a

- To find the ratio between a and b find b in terms of a

- Subtract a from both sides

∴ b = 2a

→  a    :    b

Substitute b by 2a

→  a    :    2a

Divide both terms by a

→  1     :    2

∴ a  :  b  =  1  :  2

The ratio of a : b is 1 : 2

Learn more:

You can learn more about the ratio in brainly.com/question/4302397

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