<span>Given that f(x) = 2x + 5 and g(x) = x − 7
</span>f(g(x)) = 2(x − 7) + 5
f(g(x)) = 2x - 14 + 5
f(g(x)) = 2x - 9
when x = −3 , f(g(-3)) = 2(-3) - 9 = - 6 - 9 = -15
Answer
<span>A. −15</span>
Answer:
Step-by-step explanation:
Let x represent the rate at which the ticket is sold and let y represent the number of tickets sold at that rate.
When x = 4, y = 800
This means that the income from gate takings at this rate is 4 × 800 = $3200
For each 1 dollar increase in the gate fee,management expects 100 fewer customers to buy tickets. It means that the amount earned would be (x + 1)(y - 100)
For the amount to be $3500, it means that
(x + 1)(800 - 100) = 3500
700(x + 1) = 3500
x + 1 = 3500/700 = 5
Therefore, management should charge $5 per person for gate fee so that it collects 3500 dollars from gate takings.
Here are the coordinates :)
Answer:
mark me as brainliest
#carry on learning
hope it's help
Devon made a scale drawing of a triangle. He used a scale factor of 1/4 to draw the new triangle. How does each side of the new triangle compare to the original? Each side of the new triangle is 4 times shorter than the original.
Answer:
La calculadora y el cuaderno costaba 9 y 1,8 euros hace tres días.
Step-by-step explanation:
A partir del enunciado podemos construir el sistema de ecuaciones lineales:
Hace tres días:
(1)
Actualmente:
(2)
Donde:
- Precio de la calculadora.
- Precio del cuaderno.
Por métodos algebraicos, tenemos que el sistema de ecuaciones tiene la siguiente solución:
, 
La calculadora y el cuaderno costaba 9 y 1,8 euros hace tres días.
