E maybe not certain that it is correct, hope it helps even tho i might be wrong
Answer: 23
Step-by-step explanation:
Answer:
tons of high steel and tons of low steel
Step-by-step explanation:
Let x be the number of tons of high grade steel and y be the number of tons ow low grade steel needed.
In x tons of high grade steel there are
tons of iron
tons of magnese
In y tons of low grade steel there are
tons of iron
tons of magnese
NASA orders 500 tons of steel, so
and specifies that it must be in the proportion 80% iron and 20% magnese, so
From the first equation,
Substitute it into the second equation:
Answer:
approximately 0.693
Step-by-step explanation
So, the natural log of 2 is represented as ln(2) whose value is approximately 0.693.