The number of pounds of copper in 120 pounds of brass is = 78 pounds of copper
<h3>Calculation of number of pounds of copper</h3>
The percentage of copper in the brass = 65%
Therefore the quantity of copper in the brass = 65/100= 0.65 pounds
This means that 1 pound brass contains = 0.65 pounds of copper
The quantity of copper in 120 pounds of brass = 120 * 0.65
= 78 pounds of copper.
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Answer:3.9
Step-by-step explanation:
you have to add the decimal to the exponent
3*4*3-2*4^2 = 36-32 = 4
hope helped
Answer:B
Step-by-step explanation:
