Answered

z.varies jointly as x and y and z.=60 when ×=5 and y= 6, find y when z=80 and ×4.​

Sagot :

Carissa83viz

Answer:

z=kxy

60=k(5)(6)

60=k(30)

60/30=k(30/30)

2=k

z=kxy

80=(2)(4)y

80=(8)y

80/8=(8/8)y

10=y

Step-by-step explanation:

Hope it helps!

Paki Brainliest po thank you