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Julio plans a diet to gain 0.2 kg a day. After 14 days he weighs 40 kg. The number of days he diet and his weight are related. What is the equation relating Julio's weight, w, to the number of days,d, on his diet?
How long will it take Julio to reach his goal weight of 50 kg?

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BeautyByNonochaid
i will answer the second question :
40---> 14 
50----> x 
x= (14*50) / 40
x= 17.5

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