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4 years ago

6 3/8 as a decimal and percent. HELP..

Mathematics

2 answers:

Assoli18 [71]4 years ago

6 0

The answer should be 6.375 I believe.

aleksley [76]4 years ago

3 0

First we need to make it a decimal. So we need the denominator to be 10, 100, 1000, 10000 or something along those guidelines. * can't go in 10, 100 but it can go in the thousandths place ( 1000 / 8 = 125 ) So we multiple the top and the bottom of 6 2/8 by 125. our fraction now looks like this 6 375/1000 In a decimal it looks like 6.375. To make it a percent, move the decimal two places to the right. The percent is 637.5% and the decimal is 6.375. Hope that helps!

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8TH GRADE GEOMETRY:100 POINTS+BRAINLIEST: Please answer the question and explain how you did it. Also, please tell me what a "ra

tatyana61 [14]

Answer:

Option B 1 : 3

Step-by-step explanation:

Volume formulas & definitions:

To solve this problem, we must remember the formulas for volume of each shape:

$V_{cylinder}=\pi r^2h\\V_{cone}=\frac{1}{3} \pi r^2 h$ where r represents the radius of the circular part of the shape, and h represents the height of the shape (the plural of height is "heights", and the plural of radius is "radii")

So, when the question states that the shapes "have congruent heights and radii" it means that the height of both objects is the same, and the radius of both objects is the same.

Ratios

To find the ratio of the volume of the cone to the volume of the cylinder, we must setup the ratio. Ratios can be setup as a fraction where the first quantity is the numerator (top of fraction), and the second quantity is the denominator (bottom of the fraction):

$\dfrac{V_{cone}}{V_{cylinder}}=\dfrac{\frac{1}{3} \pi r^2 h} {\pi r^2 h}$

Since the pi, the "r", and the "h" are the same in both the numerator and denominator (and since there is only multiplication & division in the fraction) these common factors can cancel, and reduce the fraction to the following:

$\dfrac{V_{cone}}{V_{cylinder}}=\dfrac{\frac{1}{3}} {1}$

Any number divided by 1 doesn't change, so one-third divided by 1 is still one-third.

$\dfrac{V_{cone}}{V_{cylinder}}=\frac{1}{3}$

Other representations of ratios

Lastly, we must remember that a ratio an also be written with a colon symbol, where the numerator is written first, and the denominator is written second.

So, the ratio of the volume of the cone to the volume of the cylinder is:

1 : 3

7 0

2 years ago

Read 2 more answers

7x + 10 - 18 + 2x = 55

Serga [27]

Answer:

Step-by-step explanation:

add the like terms,

9x - 8 = 55

9x = 63

x = 63 ÷ 9

x = 7

5 0

3 years ago

What is the value of x? 3/4x+5−1/2x=3

e-lub [12.9K]

3/4x + 5 - 1/2x = 3
3/4x - 1/2x = 3 - 5
3/4x - 2/4x = -2
1/4x = -2
x = -2 / (1/4)
x = -2 * 4/1
x = -8 <==

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3 years ago

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kkurt [141]

This is impossible to solve with this being the only information. Is there at least a chart, graph, picture, or any kind of background information?

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4 years ago

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NNADVOKAT [17]

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