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2 years ago

4m-3n=8, for m wats yeah

Mathematics

1 answer:

stealth61 [152]2 years ago

7 0

The answer would be (8+3n)/4

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Alvin's age is two times Elga's age. The sum of their ages is 63. What is Elga's age?

lawyer [7]

Answer: Alvin = 42 yrs , Elga = 21 yrs

Step-by-step explanation:

Let Elga's age be x , and Alvin's age be y ,since Alvin is two times Elga's age , then

Alvin's age = 2x , that is

y = 2x ............... equation 1

The sum of their ages is 63 implies

x + y = 63 .............. equation 2

Solving the resulting linear equations by substitution method.

Substitute equation 1 into equation 2 , we have

x + 2x = 63

3x = 63

x = 63/3

x = 21

Therefore : Elga is 21 years old , then Alvin will be 21 x 2, which will be 42

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2 years ago

Find the number of pens

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There are 44 pens in all

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2 years ago

4th grade homework question 738÷3

Finger [1]

246. (it says my answer is to short but so i have to type useless stuff anyways the answer is 246 lol have a nice day!)

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2 years ago

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The diameter of a sphere us 4 centimeters. which represents the volume of the sphere

Veronika [31]

Greetings and Happy Holidays!

The Formula for the Volume of a Sphere is: $V=\frac{4}{3}\pi r^3$

Input the value of the radius ( $\frac{d}{2}$ ):
$V=\frac{4}{3}\pi (2)^3$

Solve using the Order of Operations:
$V=\frac{4}{3}\pi (8)$

$V=\frac{4}{3}\pi \frac{8}{1}$

$V=\frac{32}{3}\pi$

The Answer Is:
$\boxed{V=33.510322}$

I hope this helped!
-Benjamin

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2 years ago

49 and 7\12 as a mixed number

slavikrds [6]

The number can be rewritten as;
49+7/12
49 $\frac{7}{12}$

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3 years ago