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3 years ago

The sum of a number is 4 less then 2 times a number is 35 what is the number?

Mathematics

1 answer:

Artist 52 [7]3 years ago

5 0

<h2>Answer:</h2>

<h2>Step-by-step explanation:</h2>

35 divided by 2 = 17.5
17.5 + 4 = 21.5
<u>Just do the inverse</u>

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Drag the tiles to the correct boxes to complete the pairs not all tiles will be used match the system of equations with their so

allochka39001 [22]

Answer:

Part 1) solution {(-5,8),(3,0)} ----> $y+12=x^{2}+x$ and $x+y=3$

Part 2) No solutions ----> $y-15=x^{2}+4x$ and $x-y=1$

Part 3) solution [(-2,5),(3,-5)] ---> $y+5=x^{2}-3x$ and $2x+y=1$

Part 4) No solutions ---> $y-6=x^{2}-3x$ and $x+2y=2$

Part 5) solution [(2,3),(8,9)] ---> $y-17=x^{2}-9x$ and $-x+y=1$

Part 6) solution [(-2,3),(7,-6)] ---> $y-15=-x^{2}+4x$ and $x+y=1$

Step-by-step explanation:

Part 1) we have

$y+12=x^{2}+x$ ----> equation A

$x+y=3$ ----> equation B

Solve by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The solution are the points (-5,8) and (3,0)

see the attached figure N 1

Part 2) we have

$y-15=x^{2}+4x$ ----> equation A

$x-y=1$ ----> equation B

Solve by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The system has no solutions, because there is no point of intersection between the two graphs

see the attached figure N 2

Part 3) we have

$y+5=x^{2}-3x$ ----> equation A

$2x+y=1$ ----> equation B

Solve by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The solution are the points (-2,5) and (3,-5)

see the attached figure N 3

Part 4) we have

$y-6=x^{2}-3x$ ----> equation A

$x+2y=2$ ----> equation B

Solve by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The system has no solutions, because there is no point of intersection between the two graphs

see the attached figure N 4

Part 5) we have

$y-17=x^{2}-9x$ ----> equation A

$-x+y=1$ ----> equation B

Solve by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The solution are the points (2,3) and (8,9)

see the attached figure N 5

Part 6) we have

$y-15=-x^{2}+4x$ ----> equation A

$x+y=1$ ----> equation B

Solve by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The solution are the points (-2,3) and (7,-6)

see the attached figure N 6

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3 years ago

First time doing mensuration, can someone enlighten me on how to find the height of the hemisphere and cone?

Alina [70]

Answer:

Step-by-step explanation:

volume= $1/3\pi r^2h +2/3\pi r^3$ [

tex]=1/3\pi *9*4+2/3\pi *3^3[/tex]

= $12\pi +18\pi$ = 30 $\pi$ volume

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3 years ago

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the pressure on a scuba diver at sea level is 14.7 pounds per square inch. The pressure in creases 0.445 psi for each foot of de

never [62]

Should be 14.7÷41.4= 0.355

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3 years ago

Point p lies on the directed line segment from A (2,3) to B (8,0) and portions the segment in the ratio 2 to 1

Arturiano [62]

Answer:

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Step-by-step explanation:

we have

A (2,3) and B (8,0)

we know that

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$AP=\frac{2}{3} AB$

and

$AP_x=\frac{2}{3} AB_x$

where

AP_x represent the distance between the points A and P in the x-coordinates

AB_x represent the distance between the points A and B in the x-coordinates

$AB_x=8-2=6\ units$

$AP_x=\frac{2}{3} (6)=4\ units$

The x-coordinate of P is equal to

$P_x=A_x+AP_x$

where

A_x represent the x-coordinate of A

substitute the values

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therefore

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3 years ago

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marin [14]

Answer:

Step-by-step explanation:

Direct variation problems can easily be solved with proportions, namely:

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3 years ago

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