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ipn [44]
3 years ago
11

Help! step by step please!

Mathematics
1 answer:
Mariana [72]3 years ago
6 0

Answer:

so it looks like it's $245 or it's $85

Step-by-step explanation:

because your equation is 5n+45

$5 dollars earned for every n(magazine) sold.

Alternatively:

if she gets 5 dollars for every 10 sold then after selling 40 it would be

40/5=8 then it becomes 8*5+45=85

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Find two positive integers such that the sum of the first number and four times the second number is 1000, and the product of th
vladimir2022 [97]

Answer:

The two numbers are:

x = 500

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Step-by-step explanation:

We want to find two numbers x and y, such that:

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now we can replace it in f(x, y):

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So now we want to maximize the function:

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Notice that this is a quadratic equation with a negative leading coefficient (so the arms of the graph will open downwards), thus, the maximum will be at the vertex.

Remember that for a general quadratic equation:

y = a*x^2 + bx + c

the x-value of the vertex is:

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so, in the case of:

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the y-value of the vertex will be:

y = -1000/(2*-4) = 1000/8 = 125

So we found the value of y.

now we can use the equation:

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x = 1000 - 4*125 = 1000 - 500 = 500

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Answer:

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Step-by-step explanation:

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Hope this helps!

7 0
3 years ago
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