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Sammie took [tex]\$25[/tex] out of her checking account. After taking the money out of her account, she had [tex]\$100[/tex] remaining. Which equation can be used to find the amount, [tex]c[/tex], Sammie had in her account before she took the money out?

A. [tex]c \times 25 = 100[/tex]
B. [tex]c - 25 = 100[/tex]
C. [tex]c \div 25 = 100[/tex]
D. [tex]c + 25 = 100[/tex]


Sagot :

To solve this problem, we need to determine the equation that represents the situation described. Here's a step-by-step breakdown:

1. Understanding the Problem:

Sammie initially had some amount of money in her checking account, which we will denote as [tex]\( c \)[/tex].

2. Taking Out Money:

Sammie took [tex]$25 out of her account. This means she removed $[/tex]25 from the initial amount [tex]\( c \)[/tex].

3. Remaining Amount:

After taking out [tex]$25, Sammie had $[/tex]100 remaining in her account.

4. Setting Up the Equation:

To find the initial amount [tex]\( c \)[/tex], we need to set up an equation that represents this situation.

The initial amount [tex]\( c \)[/tex] minus the [tex]$25 taken out should equal the $[/tex]100 remaining. This can be expressed as:

[tex]\[ c - 25 = 100 \][/tex]

5. Checking Other Equations:

Let's briefly look at why the other equations do not correctly represent this situation:

- [tex]\( c \times 25 = 100 \)[/tex]: This equation implies that the initial amount [tex]\( c \)[/tex] multiplied by 25 equals 100, which does not fit the context of taking out [tex]$25. - \( c \div 25 = 100 \): This equation implies that the initial amount \( c \) divided by 25 equals 100, which is not aligned with the problem's scenario. - \( c + 25 = 100 \): This equation implies that \( c \) plus 25 equals 100, which would mean she initially had less money than the $[/tex]100 remaining after taking out $25, which is not correct.

Therefore, the correct equation to use to find the amount [tex]\( c \)[/tex] that Sammie had in her account before she took the money out is:

[tex]\[ c - 25 = 100 \][/tex]

So, the correct choice is:

[tex]\[ \boxed{c - 25 = 100} \][/tex]