1. Translate the following statements into mathematical equation.
1. The cost Cof the fish varies directly as the weight w in kilograms.
2. The price x of onion varies directly as the number y of kilos bought
3. The payment L of a tutor is proportional to the number of hours P of service.
4. The fare f of a bus varies inversely as the distance d of his destination.
5. B varies jointly as x and y.
II. Solve the following
1. If x varies directly as y and x= 3 when y =-4, find x when y=4
2. If y varies inversely as x and y = 8 when x=5, find y when x=11
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