12%=(3+10%*x)/(20+x)
x=30
add 30 pounds of the second alloy
Answer:
32 percent
Step-by-step explanation:
8,000×400÷100
Answer:
Sofia bought some Treasury bonds that mature in nine months.
Step-by-step explanation:
it matures in only 9 months
<span>The perimeter is the sum of the side lengths, or x+y+z.</span><span> </span><span>The perimeter is 67.5 inches. </span>
