contestada

Mr. Koger is making copies of the school literary magazine to distribute to students and faculty. He has access to two copy machines: an older machine and a new machine. If he used only the older machine, it would take 80 minutes longer than if he used only the new machine. If he used both machines, he would finish the job in 30 minutes.

Respuesta :

Answer: for plato users

B. Is the correct answer

Step-by-step explanation:

Just took the test had 100

It would take 40 minutes to finish the job if Mr. Koger used only the new machine option (B) is correct.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

The situation is modeled by this rational equation:

[tex]\rm \dfrac{1}{m\:}+\dfrac{1}{m+80}=\dfrac{1}{30}[/tex]

30(m + 80) + 30m = m(m + 80)

After solving further:

m = 40, m = -60 (time cannot be negative)

Thus, it would take 40 minutes to finish the job if Mr. Koger used only the new machine option (B) is correct.

Learn more about the fraction here:

brainly.com/question/1301963

#SPJ2

Ver imagen maheshpatelvVT

Otras preguntas