7/12=p/3,p=7/12*3=7/4,so it is 7/4.
P Is Inversely Proportional To R. P = 7 When R = 12 Work Out The Value Of P When R = 3?
Yeah you can. If you find a comon numeritor and put it in precentages then work it out it is faster and eiser.
Okay let me tell you how to solve this
you said that P is inversely proportional to R
that means P=X/R when P=7 and R=12 x for a variable
so,you can put the number instead of the variables Pand R
P=X/R
7=x/12
7*12=x finally X=84
now when R=3
P=84/R
P=84/3
P=28
so when R=3 you find that P=28
I hope that I helped
you said that P is inversely proportional to R
that means P=X/R when P=7 and R=12 x for a variable
so,you can put the number instead of the variables Pand R
P=X/R
7=x/12
7*12=x finally X=84
now when R=3
P=84/R
P=84/3
P=28
so when R=3 you find that P=28
I hope that I helped