4 years ago

What is the value of x?

Mathematics

1 answer:

dmitriy555 [2]4 years ago

7 0

The first on is 71, but the 3rd question is cut off. If you tell me the cut off part, ill solve it

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Y=-4x+2=y=6x-8 can someone help me ?

schepotkina [342]

Ok so what I am seeing is Y=-4x+2 which equals Y=6x-8. So what I would do is combine the two problems so you would get 2Y=2X-6. Now divide everything by 2, so Y=X-3.

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3 years ago

Carle is cutting pieces of string that are exactly 24 3/8 inches long. How many pieces can she cut from a ball of string that ha

Bingel [31]

49 pieces

First you change the foot into inches, so it is 1200
then you divide so it is 1200/ 24 3/8 = 49 3/13
but the remaining doesn't count since it is not one whole piece

4 0

4 years ago

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A number is randomly chosen between 1 and 99. What is the probability that the number is not a multiple of 9?

serg [7]

8% is the possibility

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4 years ago

What is the volume of a hollow ball whose other radius is 200m and inner radius of 100m? What is the mass if it is iron?

kati45 [8]

Solution :

Volume of ball = Volume of outer ball - Volume of inner ball

$V = \dfrac{4\pi R^3}{3} - \dfrac{4 \pi r^3}{3}\\\\V = \dfrac{4\pi}{3}( R^3 - r^3 )\\\\V = \dfrac{4\pi}{3}( 200^3 - 100^3 )\\\\V = \dfrac{4\pi}{3}(2^3 - 1^3) \times 10^6\\\\V = 2.93 \times 10^7 \ m^3$

Now, density of iron is, d = 7300 kg/m³.

So, mass of iron ball is :

$m = d\times V\\\\m = 7300\times 2.93 \times 10^7 \ kg\\\\m = 2.14 \times 10^{11}\ kg$

Hence, this is the required solution.

5 0

3 years ago

Can somebody help with this no fake answers please im kinda low

Dmitry [639]

Step-by-step explanation:

let the total students be x then

25/100x=9

x=9×100/25

x=9×4

x=36

so total students are 36

4 0

3 years ago