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3 years ago

10 + y = 3 solve for y plz help

Mathematics

2 answers:

alukav5142 [94]3 years ago

8 0

Steps to solve:

10 + y = 3

~Subtract 10 to both sides

y = -7

Best of Luck!

Ymorist [56]3 years ago

6 0

Answer:

y= -7

Step-by-step explanation:

All you have to do is subtract 10 from both sides. This eliminates the 10 from the y side and leaves you with y= -7.

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A spherical pressure vessel is required to contain 1.5 m3 of compressed natural gas at 22 MPa . If the tank is made of A516 grad

kifflom [539]

Answer:

The required thickness of the tank wall is 87.7668 mm.

Step-by-step explanation:

Given :

Volume of vessel is V=1.5 m³.

A spherical pressure vessel is of compressed natural gas at P=22 MPa.

If the tank is made of A516 grade 60 steel with a maximum normal stress 150 MPa.

i.e. $\sigma_{max}=150\ Mpa$

To find : What is the required thickness of the tank wall?

Solution :

The diameter of the vessel is given by,

$\frac{d}{2}=\sqrt{\frac{3V}{4\pi} }$

$\frac{d}{2}=\sqrt{\frac{3\times 1.5}{4\times 3.14}}$

$\frac{d}{2}=\sqrt{\frac{4.5}{12.56}}$

$\frac{d}{2}=\sqrt{0.358}$

$\frac{d}{2}=0.598$

$d=1.196\ m$

Convert into mm,

$d=1.196\times 1000=1196.82\ mm$

The thickness of the wall tank is given by,

$t=\frac{Pd}{2\sigma}$

$t=\frac{22\times 1196.82}{2\times 150}$

$t=\frac{26330.04}{300}$

$t=87.7668$

Therefore, the required thickness of the tank wall is 87.7668 mm.

4 0

4 years ago

Jason got a new mp3 player for his birthday. He is very excited to get started downloading songs. He looks online and finds two

Kaylis [27]

Answer:

Company A is cheaper in the beginning, but company B is cheaper the more songs you buy.

Step-by-step explanation:

Company A: 1 song -1.25 5 songs- 6.25 100 songs- 125. 1000 songs- 1,125

Company B: 1 song- 4.65 5 songs- 8.25 100 songs- 70 1000 songs-700

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3 years ago

An experiment consists of choosing objects without regards to order. Determine the size of the sample space when you choose the

sdas [7]

Answer:

$n= 75, 582$

$n= 2300$

$n = 253$

Step-by-step explanation:

Generally the size of the sample sample space is mathematically represented as

$n = \left N } \atop {}} \right. C_r$

Where N is the total number of objects available and r is the number of objects to be selected

So for a, where N = 19 and r = 8

$n = \left 19 } \atop {}} \right. C_8 = \frac{19 !}{(19 - 8 )! 8!}$

$= \frac{19 *18 *17 *16 *15 *14 *13 *12 *11! }{11 ! \ 8!}$

$n= 75, 582$

For b Where N = 25 and r = 3

$n = \left 25 } \atop {}} \right. C_3 = \frac{25 !}{(19 - 3 )! 3!}$

$= \frac{25 *24 *23 *22 ! }{22 ! \ 3!}$

$n= 2300$

For c Where N = 23 and r = 2

$n = \left 23 } \atop {}} \right. C_2 = \frac{23 !}{(23 - 2 )! 2!}$

$= \frac{23 *22 *21! }{21 ! \ 3!}$

$n = 253$

4 0

4 years ago

Amelia, Luis, Shauna, and Clarence used different approaches to solve the inequality

mezya [45]

Answer:

Luis’s, because he flipped the inequality sign when he subtracted

Step-by-step explanation:

7.2b + 6.5 > 4.8b – 8.1.

Amelia started by subtracting 7.2b from both sides to get

6.5 > –2.4b – 8.1

Correct

Luis started by subtracting 4.8b from both sides to get

2.4b + 6.5 < – 8.1

Incorrect

Shauna started by subtracting 6.5 from both sides to get

7.2b > 4.8b – 14.6

Correct

Clarence started by adding 8.1 to both sides to get

7.2b + 14.6 > 4.8b

Correct

Luis’s is incorrect because he flipped the inequality sign when he subtracted

6 0

3 years ago

Use substitution to solve the system of equations.

Katarina [22]

The colution to your problem is a. (3,-6)

5 0

4 years ago