Sagot :
Answer:
1. z varies jointly as x and y and z = 48 when x = 6 and y = 8.
z= kxy
48=k(6)(8)
48=k48
k=48/48
k=1
2 q varies directly as r and inversely as u,and q=8 when r=32 and u=4
q=kr/u
8=k(32)/4
k32=(8)(4)
k=32/32
k=1
Answer:
1. z varies jointly as x and y and z = 48 when x = 6 and y = 8.
z= kxy
48=k(6)(8)
48=k48
k=48/48
k=1
2 q varies directly as r and inversely as u,and q=8 when r=32 and u=4
q=kr/u
8=k(32)/4
k32=(8)(4)
k=32/32
k=1