Answered

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What is the solution to the equation [tex]$1.25 + r = 4$[/tex]?

A. [tex]$r = 2.75$[/tex]
B. [tex][tex]$r = 3.75$[/tex][/tex]
C. [tex]$r = 5.25$[/tex]
D. [tex]$r = 5.75$[/tex]

Sagot :

GinnyAnswer
To solve the equation [tex]\(1.25 + r = 4\)[/tex], we need to isolate the variable [tex]\(r\)[/tex]. Here’s the detailed step-by-step solution:

1. Understand the equation: We start with the equation [tex]\(1.25 + r = 4\)[/tex]. Our goal is to solve for [tex]\(r\)[/tex].

2. Isolate the variable [tex]\(r\)[/tex]: Subtract [tex]\(1.25\)[/tex] from both sides of the equation to get [tex]\(r\)[/tex] by itself on one side. This can be shown as:
[tex]\[ 1.25 + r - 1.25 = 4 - 1.25 \][/tex]

3. Simplify each side:
[tex]\[ r = 4 - 1.25 \][/tex]

4. Calculate the right side: Perform the subtraction on the right-hand side to find [tex]\(r\)[/tex]:
[tex]\[ r = 2.75 \][/tex]

So, the solution to the equation [tex]\(1.25 + r = 4\)[/tex] is [tex]\(r = 2.75\)[/tex].

Therefore, the correct answer is:
[tex]\[ r = 2.75 \][/tex]
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