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4 years ago

Help please soon as possible

Mathematics

1 answer:

suter [353]4 years ago

3 0

Step 1:
Cost * Markup= $ Markup
=$20 * 15%
=20 * 0.15
=$3.00 markup

Step 2:
Cost + $ Markup= Selling Price
$20 + $3 = $23.00

Selling Price= $23.00

Hope this helped :)

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maria [59]

Answer:

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Step-by-step explanation:

8 0

3 years ago

Let the vector \mathbf{v}v have an initial point at (1, -2)(1,−2) and a terminal point at (0, 0)(0,0). Plot the vector \mathbf{v

ASHA 777 [7]

Given that the initial point of the vector is (1,-2) and the termination point of the vector is (0,0).

So, the tail of the vector is at point (1,-2) and the head of the vector is at (0,0). The vector, $\vec{v}$ , has been shown in the figure.

The magnitude of the vector:

$|\vec{v}|=\sqrt{(1-0)^2+(-2-0)^2}=\sqrt{1+4}=\sqrt{5}$

The direction of a vector is the angle made by a vector with the positive direction of the x-axis.

From the figure, $\theta = 180 \degree\tan ^{-1} \left|\frac {0-(-2)}{0-1}\right|$

$\theta = 180 ^{\circ} - \tan^{-1}(2) = 180 ^{\circ} - 63.43^{\circ}$

$\theta =116.57 ^{\circ}$

Hence, the required vector having a magnitude $\sqrt {5}$ and direction $116.57 ^{\circ}$ has been shown in the figure.

4 0

3 years ago

For (x + 4)(x + 9) to equal 0, either (x + 4) or (x + 9) must equal

Ilia_Sergeevich [38]

If (x+4)(x+9) then either x+4 = 0 or x+9 = 0

This is by the zero product property

4 0

3 years ago

6.<br> Solve the equation *x + 3 ={x +3

Arlecino [84]

Answer:

x=4

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Todd has 21 white tiles dnd some black tiles to make a mosaic. The mosaic has a total area of 144 Square centimeters. Each tile

tekilochka [14]

Answer:the number of black tiles that Todd used is 27

Step-by-step explanation:

Let x represent the number of black tiles that Todd used.

Todd has 21 white tiles and some black tiles to make a mosaic. Each tile has an area of 3 square. It means that the total area of the white tiles is 21 × 3 = 63 cm^2

The total area of the white tiles is x × 3 = 3x cm^2

The mosaic has a total area of 144 Square centimeters. It means that

3x + 63 = 144

3x = 144 - 63 = 81

x = 81/3 = 27

3 0

3 years ago