Question

When q is directly proportional to (p-1)² and

q=20, when p=3 , find the values of p when q = 80.

Answer 1

Answer:

9

Step-by-step explanation:

q∝(p-1)(2)

q=20 when p=3

20=k(3-1)(2)

k= proportionality constant

20=4k

20/4=k

k=5

------------

q=80

p=?

80=k(p-1)(2)

80=5(p-1)(2)

80=10(p-1)

80/10=p-1

8=p-1

p=8+1

p=9

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Answer 2

Step-by-step explanation:

q=80

p=?

80=k(p-1)(2)

80=5(p-1)(2)

80/10=p-1

8=p-1

p=8+1

therefore

p=9

I hope you have understand that