A metalworker has a metal alloy that is 25% copper and another alloy that is 65% copper. How many kilograms of each alloy shou
ld the metalworker combine to create 120 kg of a 49% copper alloy? The metalworker should use nothing kilograms of the metal alloy that is 25% copper and nothing kilograms of the metal alloy that is 65% copper.
2 answers:
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Answer:
or
Step-by-step explanation:
we know that
Applying Pythagoras' Theorem, calculate how many kilometers eastward Santos walked
so
Let
x----> quantity of kilometers eastward that Santos walked
----> exact value
-----> approximate value