Jessica rode 9 miles farther than Roger rode. Let r represent the number of miles Roger rode . Write am expression for the numbe
2 answers:
Answer:
An expression for the number of miles Jessica rode is, 9 + r
Step-by-step explanation:
Here, r represents the number of miles Roger rode.
Given the statement: Jessica rode 9 miles farther than Roger rode.
"Farther" means greater distance from something.
"9 miles farther than Roger rode" means 9 + r
then;
the equation of the statement become:
Therefore, an expression for the number of miles Jessica rode is, 9 + r
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The incorrect step is ln(x²) = ln(3x/0) because ln(x/y) = lnx - lny and the solutions are x = 0, 3
<h3>What is a logarithm? </h3>It is another way to represent the power of numbers, and we say that 'b' is the logarithm of 'c' with base 'a' if and only if 'a' to the power 'b' equals 'c'.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
We have:
2ln(x) = In(3x) - [In(9) - 2ln(3)]
In(x²) = In(3x) - [In(9) - In(9)]
ln(x²) = ln(3x) - 0
ln(x²) = ln(3x/0) (incorrect step)
ln(x²) = ln(3x)
x² = 3x (correct step)
x² - 3x =0
x(x - 3) = 0
x = 0, 3
Thus, the incorrect step is ln(x²) = ln(3x/0) because ln(x/y) = lnx - lny and the solutions are x = 0, 3
Learn more about the Logarithm here:
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