Announcements
Follow Us
Advert
Donate

Kindly donate to our forum.

10%

10% of donation goal reached.

Follow Us on Facebook

Solve this Direct and Inverse Variation

Reply to topic

View previous topic View next topic Go down

avatar
Paradise
Administrator
Administrator
Time Online : 3s
Gender Gender : Male
State : Ph
Posts : 920 Posts Liked : 322
Awards :

View user profile

PostParadise on Tue 28 Jun 2016, 12:10 am

P varies directly as Q2 and inversely as root R. When Q=8 and R=25,P=16. Find P when Q=5 and R=9.


Hello Guest ! Do you wish to post    your information in our forum as a Guest radiohead ? If that is what you wish, then you are most welcomed  to this community. Simply send the information you wish us to post on your behave @ Contact Us nod or you can simply Register in our forum and make the post yourself thumb ups . Registering in this forum is very simple and painless happy . It just take few seconds  enjoying and you are done.

Thanks good for reading our post. We recommend that you always visit our forum and please pleading do not forget to leave a comment below. BYE bye !!!



avatar
Deswimmer
Administrator
Administrator
Time Online : 35m 48s
State : Enugu
Posts : 288 Posts Liked : 128
Awards :

View user profile

PostDeswimmer on Thu 30 Jun 2016, 4:11 pm

simple
avatar
Deswimmer
Administrator
Administrator
Time Online : 35m 48s
State : Enugu
Posts : 288 Posts Liked : 128
Awards :

View user profile

PostDeswimmer on Thu 30 Jun 2016, 4:14 pm

P ¤ Q2  
     √R

STEP 1: Applying the constant K in the variation formula above

When we apply K in the above would have
P=K x Q2
      √R

STEP 2: Substituting with the given values
16=K x 82
       √25  
16=K x 64
        5
 
STEP 3: Cross multiplying the value
when you cross multiply we would have
16 x 5 = k x 64
80=64k  

STEP 4: Dividing both sides by 64
80  = 64k
64 =   64  
k=1.25  

STEP 5: Finding P in the given question
In order to find P, we will still use the formula above in step one.  
P= k x 52
      √9
P=1.25 x 52
       √9
P=1.25 x 25
         3
P=10.417 answer happy

Sponsored content

PostSponsored content

View previous topic View next topic Back to top

Reply to topic

Create an account or log in to leave a reply

You need to be a member in order to leave a reply.

Create an account

Join our community by creating a new account. It's easy!


Create a new account

Log in

Already have an account? No problem, log in here.


Log in

 
Permissions in this forum:
You can reply to topics in this forum