IDNLearn.com is the perfect place to get answers, share knowledge, and learn new things. Our platform offers comprehensive and accurate responses to help you make informed decisions on any topic.

Question 10 (5 points)

Consider the statement [tex]P: x + 9 = 10[/tex]. Which of the following is an equivalent statement?

A) [tex]S: x = 1[/tex]

B) [tex]R: x \ \textgreater \ 0[/tex]

C) [tex]\sim P: x + 9 \neq 10[/tex]

D) [tex]Q: x - 9 = 10[/tex]


Sagot :

Let's analyze the given statement [tex]\( P: x + 9 = 10 \)[/tex] to determine which of the provided options is an equivalent statement.

Step 1: Solve the statement [tex]\( P \)[/tex].

Start with the equation:
[tex]\[ x + 9 = 10 \][/tex]

To isolate [tex]\( x \)[/tex], subtract 9 from both sides:
[tex]\[ x + 9 - 9 = 10 - 9 \][/tex]
[tex]\[ x = 1 \][/tex]

Step 2: Compare each option to [tex]\( P \)[/tex].

A) [tex]\( S: x = 1 \)[/tex]

This statement is equivalent to [tex]\( P \)[/tex] because solving [tex]\( P \)[/tex] gives [tex]\( x = 1 \)[/tex], which matches exactly.

B) [tex]\( R: x > 0 \)[/tex]

While [tex]\( x = 1 \)[/tex] satisfies this inequality, [tex]\( P \)[/tex] specifically states [tex]\( x = 1 \)[/tex]. The inequality [tex]\( x > 0 \)[/tex] suggests a range of possible values for [tex]\( x \)[/tex], which is broader than [tex]\( P \)[/tex]. Therefore, [tex]\( R \)[/tex] is not strictly equivalent to [tex]\( P \)[/tex].

C) [tex]\( \sim P: x + 9 \neq 10 \)[/tex]

This is the negation of [tex]\( P \)[/tex], which means it directly opposes the original statement. Therefore, it is not equivalent to [tex]\( P \)[/tex].

D) [tex]\( Q: x - 9 = 10 \)[/tex]

Solving this equation:
[tex]\[ x - 9 = 10 \][/tex]

Add 9 to both sides:
[tex]\[ x - 9 + 9 = 10 + 9 \][/tex]
[tex]\[ x = 19 \][/tex]

The value [tex]\( x = 19 \)[/tex] does not match the solution of [tex]\( P \)[/tex], so [tex]\( Q \)[/tex] is not equivalent to [tex]\( P \)[/tex].

The only option that is equivalent to [tex]\( P \)[/tex] is:

A) [tex]\( S: x = 1 \)[/tex]