Question

ii) If P :q = 5:7 and P-q = -4, what is the
value of ( 3p -2q) ?​

Answer 1

Answer:

2 is the answer

Step-by-step explanation:

p:q=5:7

p/q=5/7

p=5/7q

p-q = -4

substitute p=5/7q in p-q = -4

5/7q-q = -4

5q-7q = -4 ×7

-2q = -28 q=-28/-4

q=14

p-q= -4

p-14 = -4, p= -4+14=10

p=10 3p-2q= 3×10 - 2×14 =30-28 =2