From everyday questions to specialized queries, IDNLearn.com has the answers. Find reliable solutions to your questions quickly and accurately with help from our dedicated community of experts.

Which equation is equivalent to [tex]\( 4s = t + 2 \)[/tex]?

A. [tex]\( s = t - 2 \)[/tex]
B. [tex]\( s = \frac{4}{t + 2} \)[/tex]
C. [tex]\( s = \frac{t + 2}{4} \)[/tex]
D. [tex]\( s = t + 6 \)[/tex]


Sagot :

Let's analyze each of the given equations and determine their equivalence to the given expression [tex]\( 4s = t + 2 \)[/tex].

Given:
[tex]\[ 4s = t + 2 \][/tex]

1. Checking the equation [tex]\( s = t - 2 \)[/tex]

Substitute [tex]\( s \)[/tex] in the given equation:
[tex]\[ 4(t - 2) = t + 2 \][/tex]
Simplify:
[tex]\[ 4t - 8 = t + 2 \][/tex]
[tex]\[ 4t - t = 2 + 8 \][/tex]
[tex]\[ 3t = 10 \][/tex]
This simplifies to:
[tex]\[ t = \frac{10}{3} \][/tex]
Which means for a general case, it doesn't simplify to the given equation, hence not equivalent.

2. Checking the equation [tex]\( s = \frac{4}{t + 2} \)[/tex]

Substitute [tex]\( s \)[/tex] in the given equation:
[tex]\[ 4 \left(\frac{4}{t + 2}\right) = t + 2 \][/tex]
Simplify:
[tex]\[ \frac{16}{t + 2} = t + 2 \][/tex]
Multiply both sides by [tex]\( t + 2 \)[/tex] to clear the fraction:
[tex]\[ 16 = (t + 2)^2 \][/tex]
[tex]\[ 16 = t^2 + 4t + 4 \][/tex]
[tex]\[ t^2 + 4t + 4 - 16 = 0 \][/tex]
[tex]\[ t^2 + 4t - 12 = 0 \][/tex]
This is a quadratic equation and doesn't simplify to the given formula, hence not equivalent.

3. Checking the equation [tex]\( s = \frac{t + 2}{4} \)[/tex]

Substitute [tex]\( s \)[/tex] in the given equation:
[tex]\[ 4 \left(\frac{t + 2}{4}\right) = t + 2 \][/tex]
Simplify:
[tex]\[ t + 2 = t + 2 \][/tex]
This is a true statement, which means this equation is equivalent to the given equation.

4. Checking the equation [tex]\( s = t + 6 \)[/tex]

Substitute [tex]\( s \)[/tex] in the given equation:
[tex]\[ 4(t + 6) = t + 2 \][/tex]
Simplify:
[tex]\[ 4t + 24 = t + 2 \][/tex]
[tex]\[ 4t - t = 2 - 24 \][/tex]
[tex]\[ 3t = -22 \][/tex]
[tex]\[ t = -\frac{22}{3} \][/tex]
This doesn't match the given equation for a general [tex]\( t \)[/tex], hence not equivalent.

Based on this analysis:
[tex]\[ (s = \frac{t + 2}{4}) \][/tex] is the equation that is equivalent to [tex]\( 4s = t + 2 \)[/tex].