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Olin [163]
3 years ago
15

The difference of a number times

Mathematics
1 answer:
Hunter-Best [27]3 years ago
5 0
7 x  - 5 = 8 
7 x = 8 + 5
7 x = 13
x = 13/7 


7 ( 13/7) - 5 = 8 
91/7 - 35/7 = 56/7
56/7 = 56/7 = 8 

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Calculate the volume of a cone whose base radius is 3 and half cm and vertical height 24cm​
Firlakuza [10]

The volume of a cone whose radius is 3 1 / 2 cm and vertical height is 24 cm is 307.72 cm³

<h3>Volume of a cone</h3>

The volume of a cone can be represented as follows:

volume = 1 / 3 πr²h

where

  • r = radius
  • h = height

Therefore,

r  = 3 1 / 2 cm = 7 / 2 cm

h = 24 cm

Hence,

volume = 1 / 3 × π  × (7 / 2 )² × 24

volume of a cone = 1 / 3 × π × 49 / 4 × 24

volume of the cone = 1 / 3 × π × 1176 / 4

volume of the cone =  1176 / 12 π

volume of the cone = 98π

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learn more on volume here: brainly.com/question/20380818

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2 years ago
67.5 into a fraction
andrey2020 [161]

Answer:

67 1/2

Step-by-step explanation:

67 5/10

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3 0
3 years ago
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Find the product: (x² - x + 1)(2x² + 3x + 2).
Tresset [83]

Answer:

(2x^3-2x^2-12x) is the required product.

Step-by-step explanation:

The given equation is:

2x(x-3)(x+2)

Solving the above given equation, we get

=(2x^2-6x)(x+2)

which can be written as:

=(2x^3-6x^2+4x^2-12x)

Solving the like terms, we get

=(2x^3-2x^2-12x)

which is the required product of the given expression.

3 0
4 years ago
A circle with circumference 20 has an arc with 72 degree central angle what is length of the arc
Debora [2.8K]

Answer:

<h2>4</h2>

Step-by-step explanation:

<em>Look at the picture.</em>

<em />

<em>At the beginning we have to calculate what part of the angle 360° is the given angle 75°.</em>

<em />\dfrac{75}{360}=75:360=0.2<em />

<em>The same part of the circumference of the circle is the arc defined by this central angle.</em>

The circumference <em>C = 20</em>.

Therefore

x=0.2\cdot20=4

4 0
3 years ago
Five times a number is 120, what is the number
Mandarinka [93]
24
Explanation: 24x5 = 120
7 0
3 years ago
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