SOLUTION: Each serving of Rice Krispies contains 2g of protein and 25g of carbs. Each serving of Grapenuts contains 3g of protein and 23g of carbs. How many servings of each would it take to

Question 284191: Each serving of Rice Krispies contains 2g of protein and 25g of carbs. Each serving of Grapenuts contains 3g of protein and 23g of carbs. How many servings of each would it take to get exactly 23g of protein and 215g of carbs?
I can't figure out the 2 algebraic equations to use to find the answer to the problem.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Each serving of Rice Krispies contains 2g of protein and 25g of carbs.
Each serving of Grapenuts contains 3g of protein and 23g of carbs.
How many servings of each would it take to get exactly 23g of protein and 215g of carbs?
I can't figure out the 2 algebraic equations to use to find the answer to the problem.
--------------------------------
Let "r" be number of Rice servings.
Let "g" be number of Grape servings.
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Protein Equation: 2r + 3g = 23
Carbs Equation: 25r + 23g= 215
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Solve the system for r and g
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Cheers,
Stan H.
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