Question

If q is directly proportional to (p-1) and q = 20
when p= 3, find the values of p when q = 80.​

Answer 1

Answer:

p = 7

Step-by-step explanation:

Given

q directly proportional to (p-1)

q = 20

p = 3

Find

p=? when q = 80

Solution

q = k (p-1) ...... equ (1)

20 = k (3-1)

20= k (2)

20/2=k

k= 10

put in equ (1)

q = k (p-1)

80 = 10(p-1)

80/10 = p-1

8 = p-1

8-1 = p

7 =p