Question

m:n=3:4 and a:b=5:7 find value of( 4ma-nb)/(nb-ma)

Answer 1

Answer: 32/13

Step-by-step explanation:

Let m & n be 3z and 4z

Let a and b be 5y and 7y

4ma - nb / nb - ma = 4×3z×5y - 4z×7y/

= 4z×7y - 3z×5y

= 60zy - 28zy / 28zy - 15zy

= 32zy/13zy

= 32/13

Answer 2

Answer:

Answer: 32/13

Step-by-step explanation:

Let m & n be 3z and 4z

Let a and b be 5y and 7y

4ma - nb / nb - ma = 4×3z×5y - 4z×7y/

= 4z×7y - 3z×5y

= 60zy - 28zy / 28zy - 15zy

= 32zy/13zy

= 32/13

Step-by-step explanation: