Problema Solution
If a 4-pound roast takes 150 minutes to cook, how long should five-pound roast take ?
Answer provided by our tutors
Let 'x' represent the time needed to roast 5-pound roast.
Assuming the time of cooking is directly proportional with the weight of the roast we have:
x : 5 = 150 : 4
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click here to see the equation solved for x
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x = 187.5 min
Five pound roast takes 187.5 minutes to cook.