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3 years ago

3) What percent of 104 hours is 20 hours?

Mathematics

1 answer:

Strike441 [17]3 years ago

6 0

x = percentage (eg: if x = 3 then this represents 3%)

x/100 = decimal form of the percentage (eg: if x = 3 then x/100 = 3/100 = 0.03)

The equation to solve is

x/100 = 20/104

Cross multiply to get

104x = 100*20

104x = 2000

Then divide both sides by 104 to isolate x

104x/104 = 2000/104

x = 2000/104

x = 19.230769

x = 19.23

So the answer is approximately 19.23%

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Step-by-step explanation:

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2 years ago

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alina1380 [7]

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Answers:

initial amount = 30

growth factor = 8.3

The answers are not in the given choices. I believe you are giving the wrong equation. If the correct equation here is:

A (x) = 680 x 4.3 ^x

Then the answers are:

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The answers are now in the choices given.

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3 years ago

Find the maximum value of the function for the polygonal convex set determined by the given system of inequalities.

V125BC [204]

Answer:

A. at (8,7) the maximum value is 98

Step-by-step explanation:

First draw the region, that is bounded by all

inequalities. This is the triangle with vertices

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Now you can see where the line f(x,y)=7x+6y

intersect this region. The maximum value will be

at endpoints of this region:

• at (6,1), f(6,1)=7-6+6-1=42+6=48;

at (2,5), f(2,5)=7·2+6.5=14+30=44;

• at (8,7), f(8,7)=7.8+6-7=56+42=98.

Thus, the maximum value of the function is 98 at

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2 years ago

What is the x-coordinate of the solution of the following system of equations?

Varvara68 [4.7K]

The easiest way to solve this is by elimination.

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Since you have a negative and positive y with the same coefficients (1), they cancel, and you add the other terms so it would look like:

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Then you take the x value of three and plug it into to either of the equations, so

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subtracting 9

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then dividing by -1

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so the solution is x = 3 y = 3 or (3,3)

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3 years ago

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