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3 years ago

15p!!!!What is the percent of change from 94 to 43? round to the nearest percent

Mathematics

1 answer:

Naddika [18.5K]3 years ago

7 0

Answer:

54%

Step-by-step explanation:

The different from 94 to 43:

94 - 43 = 51

The percent of change:

51/94 = 0.54 or 54%

Answer

54%

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Paladinen [302]

The solid shape is a cone and a half sphere. So the equation would be (cone volume) + (1/2 sphere volume):
$cone = \frac{1}{3} \pi {r}^{2} h \\ sphere = \frac{4}{3} \pi {r}^{3} \\ object = ( \frac{1}{3} \pi {r}^{2} h) + \frac{1}{2} ( \frac{4}{3} \pi {r}^{3} )$
If the volume of the cone is 270pi and the height of the cone is 10, then:
$270\pi = \frac{1}{3} \pi {r}^{2} (10) \\ 27 = \frac{1}{3} {r}^{2} \\ 80 = {r}^{2} \\ r = 9$
The radius of the object is 9 cm. Therefore, we can plug into the formula for the total volume:
$object = 270\pi + \frac{1}{2} ( \frac{4}{3} \pi {(9)}^{3} ) \\ = 270\pi + \frac{2}{3} (729\pi) \\ = 270\pi \: + 243\pi \\ = 513\pi$
The total volume is 513 pi cm^3

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3 years ago

Can someone please help me??

iren2701 [21]

Answer:

the first one

Step-by-step explanation:

using y=mx+b, you can find which has a "bigger" slope.

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3 years ago

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natulia [17]

Positive 2, positive 1, zero, negative 1, negative 2

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3 years ago

Kayden is a stunt driver. One time, during a gig where she escaped from a building about to explode, she drove at a constant spe

Vsevolod [243]

Step-by-step explanation:

A. D(t) = -25t + 160

this is the correct answer because if you substitute 3 you get 85

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3 years ago

The length of a board is 55 inches. The board needs to be cut into 2 pieces with one piece 5 inches longer than the other piece.

photoshop1234 [79]

<h3>The length of longer piece is 30 inches</h3>

<em><u>Solution:</u></em>

Let "x" be the length of longer piece

Let "y" be the length of shorter piece

<em><u>The length of a board is 55 inches</u></em>

Therefore,

x + y = 55 -------- eqn 1

<em><u>The board needs to be cut into 2 pieces with one piece 5 inches longer than the other piece</u></em>

Therefore,

x = 5 + y ------- eqn 2

Substitute eqn 2 in eqn 1

5 + y + y = 55

2y = 55 - 5

2y = 50

Substitute y = 25 in eqn 1

x + 25 = 55

x = 55 - 25

Thus the length of longer piece is 30 inches

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3 years ago