Mathematics: Which ordered pair is the solution to the system of linear equations y=5x+8 and -4x-1 ?

Which ordered pair is the solution to the system

Ответ:

briibearr

05.01.2022

Hello :

y=5x+8
y= -4x-1
5x+8 = -4x-1
9x =-9
x = -1
y = 5(-1)+8 = 3
ordered pair is the solution to the system : ( -1 , 3)

0,0(0 оценок)

Ответ:

drice517

28.11.2020

Mathematics

The profit is maximum when x = 40.

Step-by-step explanation:

Cost function, C = 40 x + 300

Revenue function, R = 80 x - 0.5 x^2

The profit function is

$P = R - C\\\\P = 80 x - 0.5 x^2 - 40 x - 300\\\\P = - 0.5 x^2 + 40 x - 300\\\\\frac{dP}{dx} = - x + 40\\\\So, \frac{dP}{dx} = 0\\\\-x + 40 = 0 \\\\x = 40$

So, the profit is maximum when x = 40 .

0,0(0 оценок)

Which ordered pair is the solution to the system of linear equations y=5x+8 and -4x-1 ?

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question