Question
1. Solve for \( x \) in each equatio (a) \( \log 50+\log x=2 \)
Ask by Goodwin Gibbs. in South Africa
Mar 09,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
\( x = 2 \)
Solution
1. We start with the equation:
\[
\log 50 + \log x = 2
\]
2. Use the logarithm property:
\[
\log a + \log b = \log (ab)
\]
so we can rewrite the equation as:
\[
\log (50x) = 2
\]
3. Convert the logarithmic equation to its exponential form. Recall that:
\[
\log_{10} y = k \quad \text{is equivalent to} \quad y = 10^k
\]
Therefore:
\[
50x = 10^2
\]
4. Calculate the right-hand side:
\[
10^2 = 100
\]
which gives:
\[
50x = 100
\]
5. Solve for \( x \) by dividing both sides by 50:
\[
x = \frac{100}{50} = 2
\]
Thus, the solution is:
\[
x = 2
\]
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Bonus Knowledge
To solve for \( x \), we can first use the property of logarithms that states \( \log a + \log b = \log(ab) \). Thus, we can rewrite the equation: \[ \log(50x) = 2. \] Next, we convert from logarithmic form to exponential form. The equation \( \log(50x) = 2 \) means that \( 50x = 10^2 \). So, we have: \[ 50x = 100. \] Now, divide both sides by 50 to isolate \( x \): \[ x = \frac{100}{50} = 2. \] So, the solution is \( x = 2 \).