For an investment compounded continuously, the rule of 69 gives a better approximation than the rule of 72 (for normal compound interests).
A=p (1+r/k)^kt
A=500×(1+0.02÷3)^(3×4)
A=541.50
Given that we have the change in temperature over 7 hours and we are looking for the change over 1 hour, we can divide the total change in temperature by 7. Thus, the change in temperature would be
.
Additionally, this can be solved by equations:




By using two different methods, we can determine that the change each hour was equal to 42/7 C° per hour.
The Answer
LCD = 12
Equivalent Fractions with the LCD
2/3 = 8/12
3/4 = 9/12
1/2 = 6/12
Solution:
Rewriting input as fractions if necessary:
2/3, 3/4, 1/2
For the denominators (3, 4, 2) the least common multiple (LCM) is 12.
LCM(3, 4, 2)
Therefore, the least common denominator (LCD) is 12.
Calculations to rewrite the original inputs as equivalent fractions with the LCD:
2/3 = 2/3 × 4/4 = 8/12
3/4 = 3/4 × 3/3 = 9/12
1/2 = 1/2 × 6/6 = 6/12
Hope This Was Helpful :D