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Dimas [21]
2 years ago
13

Dla każdej z liczb 20, 60, 150, 300, znajdź liczbę : a) o 10% większa, b) o 20% mniejszą, c) o 50% mniejsza,

Mathematics
1 answer:
krek1111 [17]2 years ago
4 0

Odpowiedź:

Prosimy sprawdzić wyjaśnienie

Wyjaśnienie krok po kroku:

Na numer: 20

a.) 10% więcej;

(1 + 10/100) * 20;

1,10 * 20 = 22

b.) 20% mniej

(1 - 20/100) * 20

0,8 * 20 = 16

c.) 50% mniej

(1 - 50/100) * 20

0,5 * 20 = 10

Dla numeru 60:

a.) 10% więcej;

(1 + 10/100) * 60;

1,10 * 60 = 66

b.) 20% mniej

(1 - 20/100) * 60

0,8 * 60 = 48

c.) 50% mniej

(1 - 50/100) * 60

0,5 * 60 = 30

Na numer 150;

a.) 10% więcej;

(1 + 10/100) * 150;

1,10 * 150 = 165

b.) 20% mniej

(1 - 20/100) * 150

0,8 * 150 = 120

c.) 50% mniej

(1 - 50/100) * 150

0,5 * 150 = 75

Dla numeru 300;

a.) 10% więcej;

(1 + 10/100) * 300;

1,10 * 300 = 33%

b.) 20% mniej

(1 - 20/100) * 300

0,8 * 300 = 240

c.) 50% mniej

(1 - 50/100) * 300

0,5 * 300 = 150

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A hydraulic engineer is studying the pressure in a particular fluid. The pressure is equal to the atmospheric pressure 101 kN/m
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Answer:

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a. expression for pressure is given by,

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    where d = depth below the surface in meter.

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    d = \frac{Pressure - 101}{8}

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What is the value of x? Enter your answer in the box. x =
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Answer:

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Step-by-step explanation:

The two angles are vertical angles and vertical angles are equal

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Distribute

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Subtract 4x from each side

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Read 2 more answers
How do i graph this equation?
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Answer:


Step-by-step explanation:

Unfortunately, I don't have access to the "Ray Tool."

The "absolute value function" has a v-shaped graph that opens up and has its vertex at (0,0).  Plot a dark dot at (0,0).  Starting with your pencil point on this dot, move 1 unit to the right and then 1 unit up.  This represents a slope of 1/1, or simply 1.  Draw a straight line with slope 1 starting with the black dot at (0,0) and continuing upward and to the right.

Then reflect this line across the y-axis.  This 2nd line will have a slope of -1.

I'm including a short table of values that may help you with this graphing:

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 0           0              (0,0)

  1            1              (1,1)

   2          2        

   5           5

  -1            1

   -3           3           (-3,3)

and so on.

8 0
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