Question

four quantities x,u,v,t are related by the formula s=1/2(u+v)tfind the values of v given that u=10,s=15 and t=3

Answer 1

given s = 15 , u = 10 , t = 3 
v = ?
s = 1/2(u+v)t 
15 = 1/2(10+v)3
15 = 1/2(30+3v)
15 × 2 = 30 + 3v
30 = 30 + 3v
3v = 0
v = 0 .

Answer 2

Given quantities are u,v,t.
 Given formula : s= 1/2(u + v)t,
values of the quantities are given as u = 10, s=15, t = 3,
substituting the values in the formula,
15 = 1/2(10 + v)3
⇒15÷1/2 = (10 + v)3
⇒15*2/1 = (10 +v)3
⇒30 = (10 + v)3
⇒30/3 = 10 + v
⇒10 = 10+v
⇒10 - 10 = v
∴v = 0