Please solve this problem 7 + x8 > 10
1 answer:
You might be interested in
Answer:
<h2>30.67 pounds of 32% copper alloy and 10.33 pounds of 65% copper alloy</h2>Step-by-step explanation:
First alloy contains 32% copper and the second alloy contains 65% alloy.
We wish to make 44 pounds of a third alloy containing 42% copper.
Let the weight of first alloy used be in pounds and the weight of second alloy used be
in pounds.
Total weight =
Total weight of copper =
Subtracting 32 times first equation from second equation,
∴ 30.67 pounds of first alloy and 13.33 pounds of second alloy were used.
<h2>Hello!</h2>
The answer is: the addition property
<h2>Why?</h2>Addition property states that:
if:
Then,
So,
Let:
So,
Have a nice day!