Food -- Number of Calories per Kilogram -- Number of Grams of Protein per Kilogram

S ----- 2.000 -----------------------------------------150

T ----- 1,500 -----------------------------------------90

The table above gives the number of calories and grams of protein per kilogram of foods S and T. If a total of 7 kilograms of S and T are combined to make a certain food mixture, how many kilograms of food S are in the mixture?

(1) The mixture has a total of 12,000 calories.

(2) The mixture has a total of 810 grams of protein.

OPEN DISCUSSION OF THIS QUESTION IS HERE: the-table-above-gives-the-number-of-calories-and-grams-of-129998.html
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Winsome

Last edited by

Bunuel on 17 Nov 2013, 22:31, edited 1 time in total.

Renamed the topic, edited the question and added the OA.