High School

Garrett wants to save [tex]18\%[/tex] of each paycheck. Which equation can be used to find [tex]x[/tex], the amount Garrett should save if he receives a paycheck for [tex]\$3,400[/tex] each month?

A. [tex]\frac{100}{18} = \frac{x}{3,400}[/tex]

B. [tex]\frac{18}{100} = \frac{x}{3,400}[/tex]

C. [tex]\frac{100}{3,400} = \frac{x}{18}[/tex]

D. [tex]\frac{18}{3,400} = \frac{100}{x}[/tex]

Answer :

To solve this problem, we need to find out how much Garrett should save from his paycheck. He wants to save 18% of each paycheck, and his paycheck amount is $3,400.

Step 1: Understand what percentage means.

18% of an amount is the same as multiplying the amount by 0.18 (since 18% as a decimal is 0.18).

Step 2: Set up the equation.

The problem asks for the equation that Garrett should use to find the savings amount [tex]\( x \)[/tex]. We can set up the equation using the concept of percentages:

[tex]\[
x = 0.18 \times 3,400
\][/tex]

Step 3: Look at the options to identify the correct equation.

The equation form [tex]\(\frac{18}{100} = \frac{x}{3,400}\)[/tex] relates to [tex]\(x = 0.18 \times 3,400\)[/tex] because it represents the proportion of the part (amount saved) to the whole (paycheck):

1. [tex]\(\frac{18}{100}\)[/tex] represents the percentage as a fraction.
2. [tex]\(\frac{x}{3,400}\)[/tex] implies [tex]\(x\)[/tex] is 18% of 3,400.

Step 4: Choose the right answer.

From the given options:

B. [tex]\(\frac{18}{100} = \frac{x}{3,400}\)[/tex]

This option correctly matches the reasoning and calculation for finding 18% of Garrett's paycheck.

Therefore, the correct equation to find [tex]\(x\)[/tex], the amount Garrett should save, is option B.