Answer:
$11,714
Step-by-step explanation:
C(x) = 0.7x² - 462x + 87,944
this is a quadratic equation that opens up
the vertex will be the minimum
From the quadratic formula the x coordinate of the vertex is
x = -b/2a
x = 462/(2 * 0.7)
x = 330
Plug in
c(330) = 0.7(330²) - 462(330) + 87,944
c(330) = 11,714
$11,714
Rounding to the nearest 10 means if the digit to the right of the 10s collum is 5 or more round up. if less than 5 round down.
605.8
610 is the answer as 5 is rounded up
Usando algebra, veremos que cada estudiante debe aportar $5.00.
<h3>
¿Cuál será el aporte de cada estudiante?</h3>
En el caso en el que hay 25 estudiantes, cada uno aporta $4.00, entonces la cantidad total que se colecta es:
25*$4.00 = $100
Ahora, en el caso de que hay 20 estudiantes, cada uno aportara una cantidad x, de tal forma que:
20*x = $100
Debemos resolver la ecuación de arriba para x:
x = $100/20 = $5.00
Es decir cada estudiante debe aportar $5.00
Sí quiero aprender más sobre algebra, puedes leer:
brainly.com/question/24999712
Answer:
L= 12170 ft
Step-by-step explanation:
The runaway at the airport has the shape of a rectangle and the area of 2,312,300 ft². The rectangular runaway is 190 ft wide . The length is what we are asked to find.
area of a rectangle = LW
Where
L = length
W = width
area of a rectangle = LW
area of the rectangular runaway = 2,312,300 ft²
W = 190 ft
L = ?
2,312,300 = L × 190
2,312,300 = 190L
divide both sides by 190
L = 2,312,300/190
L= 12170 ft
