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What is the value of [tex]$m$[/tex] in the equation [tex]\frac{1}{2}m - \frac{3}{4} = 20[/tex]?

A. 32
B. 44
C. 48

Sagot :

Let's solve the equation [tex]\(\frac{1}{2} m - \frac{3}{4} = x\)[/tex], where [tex]\(x\)[/tex] is one of the given values 20, 32, 44, or 48, to find the corresponding values of [tex]\(m\)[/tex].

### Step-by-Step Solution:

1. Start with the given equation:
[tex]\[ \frac{1}{2}m - \frac{3}{4} = x \][/tex]

2. Isolate [tex]\(m\)[/tex]:
To isolate [tex]\(m\)[/tex], we first need to get rid of the [tex]\(\frac{3}{4}\)[/tex] term by adding [tex]\(\frac{3}{4}\)[/tex] to both sides of the equation:
[tex]\[ \frac{1}{2}m = x + \frac{3}{4} \][/tex]

3. Solve for [tex]\(m\)[/tex]:
Now, we multiply both sides by 2 to solve for [tex]\(m\)[/tex]:
[tex]\[ m = 2 \left( x + \frac{3}{4} \right) \][/tex]

4. Substitute each value of [tex]\(x\)[/tex]:
Let's calculate [tex]\(m\)[/tex] for each given [tex]\(x\)[/tex] value one-by-one.

- For [tex]\(x = 20\)[/tex]:
[tex]\[ m = 2 \left( 20 + \frac{3}{4} \right) = 2 \left( 20.75 \right) = 41.5 \][/tex]

- For [tex]\(x = 32\)[/tex]:
[tex]\[ m = 2 \left( 32 + \frac{3}{4} \right) = 2 \left( 32.75 \right) = 65.5 \][/tex]

- For [tex]\(x = 44\)[/tex]:
[tex]\[ m = 2 \left( 44 + \frac{3}{4} \right) = 2 \left( 44.75 \right) = 89.5 \][/tex]

- For [tex]\(x = 48\)[/tex]:
[tex]\[ m = 2 \left( 48 + \frac{3}{4} \right) = 2 \left( 48.75 \right) = 97.5 \][/tex]

### Compiled Results:

- When [tex]\(x = 20\)[/tex], [tex]\(m = 41.5\)[/tex]
- When [tex]\(x = 32\)[/tex], [tex]\(m = 65.5\)[/tex]
- When [tex]\(x = 44\)[/tex], [tex]\(m = 89.5\)[/tex]
- When [tex]\(x = 48\)[/tex], [tex]\(m = 97.5\)[/tex]

Thus, the corresponding values of [tex]\(m\)[/tex] for the given [tex]\(x\)[/tex] values are:

[tex]\([41.5, 65.5, 89.5, 97.5]\)[/tex]