R and B are directly proportional variables. When R = 9, B = 3. What does R equal when B = 14?

R and B are directly proportional variables. Therefore, we can write a relationship between them as R = kB where k is a proportionality constant. We can rearrange this equation to calculate the value of k:
R = kB, therefore k = R/B = 9/3 = 3
We can then use this proportionality constant to calculate our new value of R:
R=kB = 3 x 14 = 42

LW
Answered by Liban W. Maths tutor

3336 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

x = 0.045 (45 recurring). Prove algebraically that x can be written as 1/22


Solve the simultaneous equations: 5x+y=21, x-3y=9


If A is divided by B, the result is 5/7. If B is divided by C, the result is 4/5. What is the result of A divided by C ?


Write down the value of 169^1/2 (one hundred and sixty nine to the power of a half)


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences