Resulting 4757

How many grams of pure silver and 0.770 silver must be melted so that the resulting alloy weighs 2576 g and has a quality of 0.93 / pure silver has the first quality?

Correct answer:

a =  1792
b =  784

Step-by-step explanation:


a+b=2576
a+0.770b = 2576·0.93

a+b=2576
a+0.770·b = 2576·0.93

a+b = 2576
a+0.77b = 2395.68

Row 2 - Row 1 → Row 2
a+b = 2576
-0.23b = -180.32


b = -180.32/-0.23 = 784
a = 2576-b = 2576-784 = 1792

a = 1792
b = 784

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