Solve the system of equations.2𝑥+3𝑦=8−2𝑦=−4Group of answer choices(1,2)(−1,−2)(−1,2)(1,−2) Flag question: Question 4Question 4Tips1 ptsGraph the following nonlinear system of equations and identify the two solutions.𝑦=𝑥2+6𝑥−4𝑦=−𝑥+4Group of answer choices(1,−3) and (8,−12)(1,3) and (−8,12)(1,3) and (8,12)(−1,3) and (−8,12) Flag question: Question 5Question 5Tips1 ptsKofi took a job as a salesman. He has two choices for pay. Plan A is a monthly salary of 700 GHS per month plus 15% commission on monthly sales. Plan B is a monthly salary of 800 GHS per month plus 6.5% commission on monthly sales. How much in monthly sales would Kofi need to sell to make Plan A the better option?He would have to sell more than ____ GHS per month. What number goes in the blank? Round your answer to two decimal places. Flag question: Question 6Question 6Tips1 ptsThe Family Community Theatre charges $7 for adults and $2 for children tickets. Last week 738 total tickets were sold for a revenue fo $3656. How many of each kind of ticket were sold? Adult tickets Children's tickets Flag question: Question 7Question 7Tips1 ptsDetermine whether the system is "inconsistent", "dependent" or "independent".5𝑥+2𝑦=610𝑥+4𝑦=12Group of answer choicesIndependentDependentInconsistentSaving... Submit QuizCOPYRIGHT 2024 BRIGHAM YOUNG UNIVERSITY-IDAHOQuestionsAnsweredQuestion 1AnsweredQuestion 2Haven't Answered YetQuestion 3Haven't Answered YetQuestion 4Haven't Answered YetQuestion 5Haven't Answered YetQuestion 6Haven't Answered YetQuestion 7Time Elapsed:Hide TimeAttempt due: May 31 at 6:59am
Question
Solve the system of equations.2𝑥+3𝑦=8−2𝑦=−4Group of answer choices(1,2)(−1,−2)(−1,2)(1,−2) Flag question: Question 4Question 4Tips1 ptsGraph the following nonlinear system of equations and identify the two solutions.𝑦=𝑥2+6𝑥−4𝑦=−𝑥+4Group of answer choices(1,−3) and (8,−12)(1,3) and (−8,12)(1,3) and (8,12)(−1,3) and (−8,12) Flag question: Question 5Question 5Tips1 ptsKofi took a job as a salesman. He has two choices for pay. Plan A is a monthly salary of 700 GHS per month plus 15% commission on monthly sales. Plan B is a monthly salary of 800 GHS per month plus 6.5% commission on monthly sales. How much in monthly sales would Kofi need to sell to make Plan A the better option?He would have to sell more than ____ GHS per month. What number goes in the blank? Round your answer to two decimal places. Flag question: Question 6Question 6Tips1 ptsThe Family Community Theatre charges 2 for children tickets. Last week 738 total tickets were sold for a revenue fo $3656. How many of each kind of ticket were sold? Adult tickets Children's tickets Flag question: Question 7Question 7Tips1 ptsDetermine whether the system is "inconsistent", "dependent" or "independent".5𝑥+2𝑦=610𝑥+4𝑦=12Group of answer choicesIndependentDependentInconsistentSaving... Submit QuizCOPYRIGHT 2024 BRIGHAM YOUNG UNIVERSITY-IDAHOQuestionsAnsweredQuestion 1AnsweredQuestion 2Haven't Answered YetQuestion 3Haven't Answered YetQuestion 4Haven't Answered YetQuestion 5Haven't Answered YetQuestion 6Haven't Answered YetQuestion 7Time Elapsed:Hide TimeAttempt due: May 31 at 6:59am
Solution
Claro, vamos a resolver cada pregunta paso a paso.
Pregunta 1: Resolver el sistema de ecuaciones:
Primero, resolvemos la segunda ecuación para :
Ahora sustituimos en la primera ecuación:
La solución del sistema es .
Pregunta 2: Graficar el siguiente sistema no lineal de ecuaciones e identificar las dos soluciones:
Igualamos las dos ecuaciones para encontrar los puntos de intersección:
Resolvemos la ecuación cuadrática:
Entonces, y .
Sustituimos estos valores en : Para :
Para :
Las soluciones son y .
Pregunta 3: Kofi tiene dos opciones de pago. Plan A es un salario mensual de 700 GHS más una comisión del 15% sobre las ventas mensuales. Plan B es un salario mensual de 800 GHS más una comisión del 6.5% sobre las ventas mensuales. ¿Cuánto tendría que vender Kofi mensualmente para que el Plan A sea la mejor opción?
Sea el monto de las ventas mensuales.
Plan A:
Plan B:
Queremos que Plan A sea mejor que Plan B:
Kofi tendría que vender más de 1176.47 GHS por mes.
Pregunta 4: El Family Community Theatre cobra 2 por entradas de niños. La semana pasada se vendieron 738 entradas en total para un ingreso de $3656. ¿Cuántas entradas de cada tipo se vendieron?
Sea el número de entradas de adultos y el número de entradas de niños.
Sistema de ecuaciones:
Resolvemos el sistema: De la primera ecuación:
Sustituimos en la segunda ecuación:
Entonces:
Se vendieron 436 entradas de adultos y 302 entradas de niños.
Pregunta 5: Determinar si el sistema es "inconsistente", "dependiente" o "independiente":
Multiplicamos la primera ecuación por 2:
Observamos que la segunda ecuación es idéntica a la primera multiplicada por 2, lo que significa que las dos ecuaciones son dependientes.
El sistema es "dependiente".
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