Answer:
10
Step-by-step explanation:
Answer:
x = 24.
r 0.
Step-by-step explanation:
2. The given equation is:
a) To eliminate the fractions multiply the equation throughout by the LCM of the denominators of the fraction. In this case, the LCM of (2, 3). The LCM is 6. So, multiply the entire equation by 6.
b) Half of the difference between an integer and 4 equals the sum of one - third of the integer and 2. Find the integer.
c) We have the equation:
Multiplying throughout by 6, we get:
Therefore, the solution of the equation is 24.
3. The given equation is:
To solve for y:
We can rearrange the equation as:
or,
Note that we have to impose a condition on variable . It would be that can never be zero. i.e., . Otherwise, the value of would be undefined.
Given that the half life of 3H is 12.3 years.
The amount of substance left of a radioactive substance with half life of
after t years is given by
Therefore, the number of years it will take for 18% of the original tritinum to remain is given by
Therefore, the number of <span>years that the time could be read at night is 30.4 years.</span>
Each side should increase by 2x (left & right, and up & down) so that to match the condition :
7+2x)(6+2x) = 45
Solving it will give you: 4x² + 26x - 3