Respuesta :

apologiabiology
m vaires jointly as with p and r
m=kpr
m=1
p=2
r=4
sub
1=k*2*4
1=k*8
divide both sides by 8
1/8=k

answer is contatnt is 8

Answer:

A) 1/8

Step-by-step explanation:

Given:

A quantity "m" varies jointly with "p" and "r".

Now we have to form the equation.

m = kpr, where "k" is the constant.

Now we have to plug in the given values; m =1, p = 2 and r = 4 and find the value of k.

1 = k.2.4

1 = 8k

Divide both sides by 8, we get

8k/8 = 1/8

k = 1/8.