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3 years ago

What is the solution to the equation 3/5n - 4/5 = 1/5n?

Mathematics

2 answers:

algol [13]3 years ago

7 0

Answer:

The answer is B

The answer is 2.

Work:

3/5n-4/5=1/5n

-Combine like terms

3/5n-4/5=1/5n

-3/5n -3/5n

-4/5=-2/5n

Divide by -2/5

-4/5=-2/5n

/ -2/5

(the 5 crosses out leaving -4/-2)

n=2 :)

Plz mark brainliest↖(^ω^)↗

antiseptic1488 [7]3 years ago

3 0

Answer: 2

Step-by-step explanation:

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What is the value of (16^3/2)^1/2

Alika [10]

<u><em>Answer: =1024. *The answer must be have positive sign.*</em></u>

Step-by-step explanation:

This question's it's about the order of operations. p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtract. It can also go left to right.

do exponents first.

16³/2=4098=2048¹/2

2048¹=2048

2048/2

divide left to right.

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Hope this helps!

Thanks!

Have a great day!

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4 years ago

Find the surface area (in terms of π) of a sphere if its volume is 972 π.

Sholpan [36]

Surface area of sphere is $Surface\,\,Area=324\pi$

Step-by-step explanation:

We need to find the surface area of the sphere while we are given volume of sphere = 972π

The formula used to find surface area is:

$Surface\,\,Area=4\pi r^2$

We need to find radius of sphere

We are given Volume = 972π, using this volume we can find radius of sphere

The formula used to find volume is:

$Volume=\frac{4}{3}\pi r^3$

Putting values and finding r

$972\pi =\frac{4}{3}\pi r^3$

$r^3=\frac{972\pi *3}{4\pi } \\r^3=729$

Taking cube root on both sides

$\sqrt[3]{r^3}=\sqrt[3]{729}\\ r=9$

So, Radius of sphere r=9

Now finding surface area:

$Surface\,\,Area=4\pi r^2$

$Surface\,\,Area=4\pi (9)^2$

$Surface\,\,Area=4\pi 81$

$Surface\,\,Area=324\pi$

So, surface area of sphere is $Surface\,\,Area=324\pi$

Keywords: Surface area of sphere

Learn more about Surface area of sphere at:

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