¿Todavía tienes preguntas de matemáticas?

Pregunte a nuestros tutores expertos
Algebra
Pregunta

3) A company makes two electronic circuit boards t...

3) A company makes two electronic circuit boards that require the same resistance. The Pro- X board runs on \( 120 \) volts, while the Pro-I board runs on \( 90 \) volts. If the current running through the Pro-I board is \( 15 \) fewer milliamps (mA) than the current running through the Pro- \( X \) board, how much current is running through each board? 

Which of the following rational equations bests models this situation? 

\(\frac { 120 } { x } = \frac { 90 } { x } - 15 \) 

\( \frac { 120 } { x } = \frac { 90 } { 15 - x } \) 

\( \frac { 120 } { x } = \frac { 90 } { x - 15 } \) 

\( \frac { 120 } { x } = \frac { 90 } { x + 15 } \) 

\( \frac { 120 } { x - 15 } = \frac { 90 } { x }\) 

Answer

C.

Solución
View full explanation on CameraMath App.