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3 years ago

If 5% of an item is $0.50, what is the original price?

Mathematics

1 answer:

Blababa [14]3 years ago

7 0

Answer:

$10

Step-by-step explanation:

0.05x=0.50

x=10

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The area of a rectangular wall of a barn is 32 square feet. It’s length is 4 feet longer than the width. Find the length and wid

Gnom [1K]

Answer:

Step-by-step explanation:

Givens

Area = L * w

w = x

l = x + 4

Area = 32

Solution

32 = x(x + 4)

32 = x^2 + 4x

x^2 + 4x - 32

(x + 8)(x - 4)

Only x - 4 is going to make any sense

x - 4 = 0

x = 4

The width is 4

The length is 4 + 4 = 8

4*8 = 32 which is the area.

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4 years ago

What is the length of arc S shown below?<br> The angle in the figure is a central angle in radians.

Taya2010 [7]

Answer:

Step-by-step explanation:

Arc length = r × theta

Arc length = 5 × 0.4

= 2

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4 years ago

**WILL GIVE 100 POINTS AND BRAINLIEST**

aleksklad [387]

Answer:

below:

Step-by-step explanation:

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2 years ago

Find the angle between u = (8.- 3) and v = (-3,- 8) Round to the nearest tenth of a degree.

Nimfa-mama [501]

Answer:

Step-by-step explanation:

First you must calculate the module or the magnitude of both vectors

The module of u is:

$|u|=\sqrt{(8)^2 + (-3)^2} \\\\|u|=\sqrt{64 + 9}\\\\|u|=8.544$

The module of v is:

$|v|=\sqrt{(-3)^2 + (-8)^2} \\\\|u|=\sqrt{9 + 64}\\\\|u|=8.544$

Now we calculate the scalar product between both vectors

$u*v = 8*(-3) + (-3)*(-8)\\\\u*v = -24+ 24=0$

Finally we know that the scalar product of two vectors is equal to:

$u*v = |u||v|*cos(\theta)$

Where $\theta$ is the angle between the vectors u and v. Now we solve the equation for $\theta$

$0 = 8.544*8.544*cos(\theta)\\\\0 = cos(\theta)\\\\\theta= arcos(0)\\\\\theta=90\°$

the answer is 90°

Whenever the scalar product of two vectors is equals to zero it means that the angle between them is 90 °

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4 years ago

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Margaret is solving the linear equation 3(x+4)=42 . As she was solving, she took the equation 3(x+4)=42 , performed an algebraic

Varvara68 [4.7K]

Answer:

D) Distributive Property

Step-by-step explanation:

3×x=3x

3×4=12

3x+12=42

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2 years ago

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