For this case we have the following situation:
Initial capital: $50
Sale for $60: Then he made a profit of $10. ($60- $50 = $10)
Initial capital 2: $60 + $10 (Invest additional $10)
Sale for $ 80: Then he made a profit of $ 10. ($80- $70 = $10)
Thus, it can be seen that during the transactions he obtained a profit of $10 + $10 = $20
Answer:
Option B
Earned $20
<span>7/3+3(2/3−1/3)^2
= 7/3 + 3(1/3)^2
= 7/3 + 3(1/9)
= 7/3 +1/3
= 8/3</span>
Answer:
Step-by-step explanation:
So we have the equation:
Subtract 18 from both sides. The left cancels:
Multiply both sides by -2. The left cancels again:
Take the square root of both sides:
Since we're taking the square root, we need to use plus-minus.
Evaluate:
So, the solutions are -6 or 6.
Answer:
Sorry I don't know the answer but you can try to do it................