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2 years ago

What is the value of 5x−2y=305

Mathematics

1 answer:

sammy [17]2 years ago

6 0

Answer:

x = 61 y = 0

Step-by-step explanation:

5x − 2y = 305

-5x -5x Subtract 5x from both sides

-2y = -5x + 305 Divide both sides by -2

y = 2.5x - 152.5

A possible solution is x = 61 y = 0

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Read 2 more answers

The profit from a business is

GuDViN [60]

First of all we will understand the question!!

The question is saying that you are given a function and you have to find the value of x which will give the maximum profit... Lets solve it by finding the extrema using the vertex

 $\rm \: p(x) = - 5 {x}^{2} + 30x + 8$ 

Identify the coefficients a and b of the quadratic function

 $\rm \: p(x) = { - 5x}^{2} + 30x + 8 \\ \rm \: a = - 5 \: and \: b \: = 30$ 

Since a<0, the function has the maximum value at x, calculated by substituting a and b into x=-b/2a

$\rm \: x = \frac{30}{ 2 \times (- 5)}$

Solve the equation for x

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