if a varies jointly as b and c and a =36 when b =3 and c=4 find the following. a.constant of variation b.equation of variation c.value of a when b=2 and c=5 d.value of b when a =45 and c=3e.value of c when a =60 and b=2
Answer (1)
Answer:a=kbc36=k(3)(4)36=12k36/12=12k/1212=ka=kbca=12bca=12bca=12(2)(5)a=120a=12bc45=12b(3)b=12(45)(3)b=1,620a=12bc60=12(2)cc=12(2)(60)c=1,440
