Solve the system by substitution. 12x+6y+7z=−35 7x−5y−6z=200 x+y=−10

Answers

Answer 1

Answer:

BiG ChUnGuS  moo

Step-by-step explanation:

Answer 2

Answer:

Read Below

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 10 , −20, − 5 )

Equation Form:

x =10, y =−20, z = −5


Related Questions

BOXES Simon will make a box without a top by cutting out corners of equal size from a 22 inch by 15 inch sheet of cardboard and folding up the sides. Which of the following is closest to the greatest possible volume of the box?

a. 330 in3
b. 144 in3
c. 432 in3
d. 1296 in3

Answers

Answer:

Volume of box is [tex]432 in^3[/tex]

Step-by-step explanation:

Let x be the side of square corner

Length of box after cutting corners =22-2x

Breadth of box after cutting corners =15-2x

Height =x

Volume of box = (22-2x)(15-2x)x

Volume of box =[tex]4x^3-74x^2+330x[/tex]

Differentiate w.r.t x

[tex]\frac{dV}{dx}=12x^2-148x+330[/tex]

Substitute derivative =0

[tex]12x^2-148x+330=0\\x=\frac{37-\sqrt{379}}{6},\frac{37+\sqrt{379}}{6}\\\frac{d^2V}{dx^2}=24x-148[/tex]

at [tex]x=\frac{37-\sqrt{379}}{6}[/tex]

[tex]\frac{d^2V}{dx^2}=24x-148=24(\frac{37-\sqrt{379}}{6} )-148=-77.87 < 0[/tex] hence maximum

at  [tex]x=\frac{37+\sqrt{379}}{6}[/tex]

[tex]\frac{d^2V}{dx^2}=24x-148=24(\frac{37+\sqrt{379}}{6} )-148=77.87>0[/tex] hence minimum

So,Volume of box =[tex]4x^3-74x^2+330x=4(\frac{37-\sqrt{379}}{6} )^3-74(\frac{37-\sqrt{379}}{6} )^2+330(\frac{37-\sqrt{379}}{6} )=432.23 in^3[/tex]

Hence Volume of box is [tex]432 in^3[/tex]

Malik has $575 in the bank and each week he withdraws $25 out of his
account. How much money will he have after 8 weeks?

Answers

Answer:

375$

Step-by-step explanation:

25*8 is 200, 575-200 is 375

Help please ;^;^;^;^;^;^;^;^;^; ​

Answers

Answer:

10n+10=8n-10

n= -10

I hope this helps

K(x)=-2|3x+1|-3 ; find k(-3). Please help

Answers

-2|3(-3)+1| -3= -2|-8|-3= -16-3=-19

solve for X , thanks

Answers

[tex]x = 5 \sqrt{2} [/tex]

it does let me to out the +/- in front of the five but it have to be there so you put it ... because it can be both positive or negativw

What is the answer to 49/4018

Answers

Answer:

1/82

Step-by-step explanation

Divide both the numerator and denominator by 49 to get the simplified version.

[tex]\frac{49}{4018}\frac{/49 }{/49} \frac{1}{82}[/tex]

Hope this helps!

Nicole is 56 inches tall and has an 84 inch shadow. Julie is standing next to Nicole and has a 96 inch shadow. How tall is Julie?

Answers

Answer:

56+12=68.         68 inches

Step-by-step explanation:

julie‘s shadow is 12 inches taller than Nicole’ so you would just add 12 to 56.

what is the anwser to this −4(w+1)=−24

Answers

Answer:

− 4 = − 2 0

Step-by-step explanation:

Answer:

= -7                        

Divide both sides by the numeric factor on the left side, then solve.

Help me please with this

Answers

Answer:

$1,007.38

Step-by-step explanation:

Answer:

$143.91

Step-by-step explanation:

2,014.72/14

143.908571429

143.91

Solve for the indicated variable x/9 - g = a for x

Answers

Answer:

x =  9(a+g)

Step-by-step explanation:

x/9 - g = a

Add g to each side

x/9 - g+g = a+g

x/9 = a+g

Multiply each side by 9

x/9 * 9 = 9(a+g)

x =  9(a+g)

What is the equation of the line that is parallel to the
given line and passes through the point (-2, 2)?
O y=1/5x+4
Oy= 1/5x+12/5
O y = -5x + 4
O y=-5x +12/5

Answers

The equation of the parallel line that passes through the point (-2, 2) is y= (1/5) x + (12/5)

What is meant by line's slope?The slope of a line indicates how steep it is. Slope is defined mathematically as "rise over run." Choose two points on the line and calculate their coordinates. Determine the difference in y-coordinates between these two points. Determine the difference in x-coordinates between these two points. Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).There are four types of slopes: negative, positive, zero, and undefined. as x grows The slope of a line can also be interpreted as the "average rate of change."

Therefore,

The slopes of the two lines will be the same because it runs parallel to the line predicted by the equation.

The slope of the line is 1/5,

We know that the line is y= (1/5) x + c.

We can now find the y-intercept using the given point (-2,2).

[tex]$&\Rightarrow y=m x+c \\[/tex]

[tex]&y^2=\frac{1}{5}(-2)+c \\[/tex]

[tex]&\Rightarrow^2=\frac{-2}{5}+c \\[/tex]

[tex]&\Rightarrow c=2+\frac{2}{5}=\frac{10+2}{5}=\frac{12}{5} \\[/tex]

[tex]&\Rightarrow c=\frac{12}{5}[/tex]

Hence, The line's final equation will be [tex]y=\frac{1}{5} x+\frac{12}{5}[/tex]

To learn more about line's slope, refer to:

https://brainly.com/question/16949303

#SPJ2

Answer:

b) y = 1/5x + 12/5

Step-by-step explanation:

took the test on edge

0.00952 in scientific notation

Answers

Answer:

9.52

Step-by-step explanation:

Help please and thank you

Answers

Answer:

15.5

Step-by-step explanation:

add up all the ranges and devided by 100% and had founded out the reminder was 15.5

Please help me !! HELP ASAP! THANK U

Answers

Answer:

The answer is 1,028!

Step-by-step explanation:

Add them together. $699 + $329 = $1,028

Answer: $3084

Step-by-step explanation: The cost of ipad and iphone together costs 1028 and you mutiply that by 3 to get the amount for 3 people

Order from least to greatest. 5/4, 0.75, -5/4, -0.8, -1.11

Answers

Answer:

-5/4, -1.11, -0.8, 0.75, 5/4

Answer:

1.25,0.75,-0.8,-1.11,-1.25

Step-by-step explanation:

divide the fraction and remember the number line how it goes

6W - 12x + 7w - 8x =

Answers

6W (-12x) + 7W (-8x) = 13W - 20x
Explanation:
6W + 7W = 13W
-12x - 8x = -20x

The length of a baby python increases from 15 inches to 18 inches in one month. By what percentage did the length of the python increase? 120%; 83%; 20%; 3%

Answers

Answer:

20%

Step-by-step explanation:

20% of 15 is 3.

(To check 3 x 5 = 15. 20 x 5 = 1.00)

3 +15 = 18.

Answer:

20% is the answer

Step-by-step explanation:

18-15=3 inches

3/15=20%

so +20% to 15 =18 inches

-2x+1=-x+8
WHAT IS X

Answers

Answer:

x=-7

Step-by-step explanation:

add 2x to -x to get 1=x+8, then subtract 8 to get x=-7

Answer:

x = -7

Step-by-step explanation:

1 Regroup terms.

-2x+1=8-x−2x+1=8−x

2 Add 2x2x to both sides.

1=8-x+2x1=8−x+2x

3 Simplify  8-x+2x8−x+2x  to  8+x8+x.

1=8+x1=8+x

4 Subtract 88 from both sides.

1-8=x1−8=x

5 Simplify  1-81−8  to  -7−7.

-7=x−7=x

6 Switch sides.

-7 = x

x=−7

Hope this helps!

-Jerc

PLEASE ANSWER is the answer A,B or C???

Answers

Answer:

A. Black Dogs

Step-by-step explanation:

it cant be any other one because it says for every brown dog there are 2 of a different dog. So there are 5 brown dogs so that means there is going to be ten of another kind and that is the black dogs.

Susan earned $220 babysitting last week.

On Monday she earned $30 and spent $5.
On Tuesday she earned $35 and spent $25.
On Wednesday she earned $60 and spent $40.
On Thursday she earned $30 and spent $15.
On Friday she earned $65 and spent $25.
Note: Money earned is (+) and money spent is (-)

What is the absolute value of the difference between the money she made on Tuesday and the money she spent on Friday?

Group of answer choices

60

25

10

35
answer for free brainly

Answers

Answer

35-25 =15

65-25=45

Step-by-step explanation:

45-15=35   35 = answer

pls can i have that brainly

Two times a number +1 is greater than five and less than seven

Answers

Answer:

6

Step-by-step explanation:

because you should know it is well maybe it should have a decimal

The answer is Six.

Explanation:
2 times a number +1 is greater than five but less than seven. That means the answer is in between 5 and 7. 5 !!6!! 7

Ruth wants to buy a skateboard for $56. She has $90 in her account. She spent $11.65 to buy stationary. She also wants to buy some comic books for $3.72 each. What is the maximum number of comic books, n, that Ruth can buy so that she has enough money left to buy the skateboard?

n ≥ 6
n ≤ 6
n ≤ 16
n ≥ 16

Answers

Answer:

n ≤ 6

Step-by-step explanation:

She can't buy more than 6 comic books in order to have enough money to buy skateboard.

90 - 11.65 - 56 = 22.35

Comic Books:

22.35 : 3.72 = 6.008

Answer:

IT B

Step-by-step explanation:

TOOK THE TEST AND IT WAS RIGHT

Is the expression 56/-7
​undefined? If​ not, find the quotient.
Select the correct choice below​ and, if​ necessary, fill in the answer box within your choice.

Answers

Answer:

not undefined- quotient is -8, an integer

Step-by-step explanation:

What is the range of this function?
(16, -16)
(13, 16)
(8, 7)

Answers

Answer:

Domain: { 16, 13 , 8 }

Range: { −16, 16, 7 }

Step-by-step explanation:

The domain is the set of all the values of  x.

The range is the set of all the values of  y .

Solve for x

6^(x-2)=2(3^(3x+2))

Answers

Answer:

1. x = 3/2 = 1.500

2. x = ± √3 = ± 1.7321

Step-by-step explanation:

The vorrrect answer is 1.7

What is the expression under the radical sign in the quadratic formula called? *

coefficient

degree

discriminant

O conjugate

5 poin

Answers

Answer: C) Discriminant

The formula for the discriminant is

d = b^2 - 4ac

If d < 0, then there are no real number solutions

If d = 0, then you have exactly one real solution

If d > 0, then you have two different real number solutions

Name AYSON Copeland
Date
Decoding Domain
1. This November, FFA students are making fruit baskets to sell to
the community to raise money for a trip. Cassie, an FFA student, is
able to make 10 fruit baskets and will sell them for $40 each.
Make a table with possible values for number of baskets and
earnings
Choc
Choose one: Discrete or Continuous
XDomain:
y
Range:
M

Answers

Answer:

daddy

Step-by-step explanation: daddy for ever

could you guys simply these!! I need help asap! :)

Answers

Answer:

Step-by-step explanation:

1. 7x+7

2. 2y+5

Not sure about 3 or 4

5. 11x

6.5x+7

7.10x-9y

8. 5x+5y

Not sure about 9

10. 4x+4

Answer:

7x+7

2y+5

6x^2+3y

5a^3+4a^2+3a (This one is the same because none of the terms are alike)

11x

5x+7

10x-9y

5x+5y

x^2+6x

4x+4

Step-by-step explanation:

Combine like terms for all of these, meaning adding or subtracting anything that has the same variable or power of a variable attached to it.

ben score 44 out of 60 marks in the math test.
what is his score as a percentage to 1 decimal place

Answers

Answer:

73.3%

Step-by-step explanation:

Write the converse of the statement below. Then determine whether the statement is true or false. If false, give a counter example. Conditional Statement: If two angles are corresponding in parallel lines, then they are congruent.

Answers

Answer:

no

Step-by-step explanation:

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