IS I two variablesand finding their solutions frimthe graph 2x t y 5 a

1.	IS I two variablesand finding their solutions frimthe graph 2x t y 5 and 3x - 2y4une 2015If the present ages of A and 'B are in the ratio 9:4 and seven years hence, the ratio of theirages will be 5:3 then find their present ages.arch 20164. For what values of m,the pair ot eguntinms Rr
Answer» Given,9x+7/4x+7 = 5/3 3(9x+7) = 5(4x+7)27x+21 = 20x+3527x-20x = 35-217x = 14x = 14/7x = 2 A's age = 9x = 92 = 18B's age = 4x = 42 = 8 therefore A is 18 years old and B is 8 years old.

IS I two variablesand finding their solutions frimthe graph 2x t y 5 and 3x - 2y4une 2015If the present ages of A and 'B are in the ratio 9:4 and seven years hence, the ratio of theirages will be 5:3 then find their present ages.arch 20164. For what values of m,the pair ot eguntinms Rr

Answer»

Given,9x+7/4x+7 = 5/3

3(9x+7) = 5(4x+7)27x+21 = 20x+3527x-20x = 35-217x = 14x = 14/7x = 2

A's age = 9x = 9*2 = 18B's age = 4x = 4*2 = 8

therefore A is 18 years old and B is 8 years old.