Question

what least number must be subtracted from each term of the ratio 3 is to 9 to make the ratio 3 is to 4​

Answer 1

Answer:

-15 should be subtracted

Explanation:

Let x to be subtracted.

➡ (3 - x ) / ( 9 - x ) = 3/4

➡ 4 ( 3 - x ) = 3 ( 9 - x )

➡ 12 - 4x = 27 - 3x

➡ 12 - 27 = -3x + 4x

➡ - 15 = x

Verification:

(3 - x ) / ( 9 - x ) = 3 : 4

Substitute -15 in place of x

➡ (3 - (-15) ) / ( 9 - (-15) ) = 3/4

➡ ( 3 + 15 )/ (9 + 15 ) = 3/4

➡ 18/24 = 3/4

➡ 3/4 = 3/4

LHS = RHS

hence, verified.