Question

if p:q=5:7 and p-q = -9 let us find the value of 3p+4q​

Answer 1

Step-by-step explanation:

p-q=9

5x-7x=9

-2x=9

x=9/-2

Answer 2

p/q=5/7

p=5/7×q

p-q=-9

5/7q-q=-9

q=63/2

p=45/2

3p+4q=3×45/2+4×63/2 by simply u get answer.