IDNLearn.com is designed to help you find reliable answers to any question you have. Get prompt and accurate answers to your questions from our community of knowledgeable experts.

Select the correct answer.

What is the solution for [tex] t [/tex] in the equation?

[tex] \frac{2}{3} t - \frac{1}{5} t = 2 [/tex]

A. [tex] t = 6 [/tex]
B. [tex] t = \frac{7}{30} [/tex]
C. [tex] t = \frac{30}{7} [/tex]
D. [tex] t = \frac{2}{3} [/tex]


Sagot :

To solve the given equation:

[tex]\[ \frac{2}{3} t - \frac{1}{5} t = 2 \][/tex]

we proceed with the following steps:

1. First, combine the terms that contain [tex]\(t\)[/tex]. We need to find a common coefficient for [tex]\(t\)[/tex]:

[tex]\[ \left(\frac{2}{3} - \frac{1}{5}\right) t = 2 \][/tex]

2. Subtract the fractions:

To subtract [tex]\(\frac{1}{5}\)[/tex] from [tex]\(\frac{2}{3}\)[/tex], we'll need a common denominator. The common denominator of 3 and 5 is 15.

Convert each fraction:

[tex]\[ \frac{2}{3} = \frac{2 \times 5}{3 \times 5} = \frac{10}{15} \][/tex]

[tex]\[ \frac{1}{5} = \frac{1 \times 3}{5 \times 3} = \frac{3}{15} \][/tex]

Now subtract the fractions:

[tex]\[ \frac{10}{15} - \frac{3}{15} = \frac{10 - 3}{15} = \frac{7}{15} \][/tex]

3. Substitute back into the equation:

[tex]\[ \frac{7}{15} t = 2 \][/tex]

4. To solve for [tex]\(t\)[/tex], isolate [tex]\(t\)[/tex] by dividing both sides by [tex]\(\frac{7}{15}\)[/tex]:

[tex]\[ t = \frac{2}{\frac{7}{15}} \][/tex]

5. Dividing by a fraction is equivalent to multiplying by its reciprocal:

[tex]\[ t = 2 \times \frac{15}{7} = \frac{30}{7} \][/tex]

Thus, the solution for [tex]\(t\)[/tex] is:

[tex]\[ t = \frac{30}{7} \][/tex]

Hence, the correct answer is:

[tex]\[ \boxed{\frac{30}{7}} \][/tex]