Mathematics College

30. What is the solution to the system of equations?

3x + 3y - Z=1
Z=8
-X-3y + 2z = 13


A: (3, 0, 8)

B: (3, 0, -8)

C: (-3, 0,8)

D: (3, 2, 8)

Answers

Answer 1

Answer:

x = 3

y = 0

z = 8

Step-by-step explanation:

a) 3x + 3y - z = 1

b) z = 8

c) -x -3y + 2z = 13

a) 3x + 3y - 8 = 1 (substitution)

a) 3x + 3y = 9

c) - x - 3y + 2(8) = 13 (substitution)

c) -x - 3y + 16 = 13

c) -x - 3y = -3

(3x + 3y = 9) + (-x -3y = -3)

= 2x = 6

x = 3

a) 3(3) + 3y - 8 = 1

9 + 3y - 8 = 1

y = (1 -9 + 8)/3

y = 0

Related Questions

1) The temperature in Chicago is 42°F and the temperature in
Dayton is 19° cooler. What is the temperature in Dayton?
A. 25°F B. 61°F C. 23°F D. 58°F

Answers

Just subtract 19 from 42

I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 30 miles per hour instead, then I would have arrived 25 minutes later. How many miles did I drive?

Answers

Step-by-step explanation:

x = number of hours driven

25 minutes = 5/12 hour

remember,

1 hour = 60 Minuten

5 minutes = 60/12 minutes = 1/12 hour

25 minutes = 5×5 minutes = 5/12 hour

x hours × 40 miles/hour = (x + 5/12) hours × 30 miles/hour

the dimensions "hour" eliminate each other from the top and the bottom of the fractions leaving only miles. and the miles must be the same either way.

40x = (x + 5/12)×30 = 30x + 150/12

10x = 150/12

x = 15/12 = 5/4 hours

40 miles/hour × 5/4 hours = 40×5/4 miles = 10×5 = 50 miles.

I drove 50 miles.

What is the solution of the linear -quadratic system of equations?
{y=x^2+5x-3
{y-x=2​

Answers

Answer:

Step-by-step explanation:

the answer is that it make no sense bro

if c is a positive number, how many solutions does vx=c have?​

Answers

All cases where v and x are both negative or both  positive numbers.

What is the midpoint of the segment shown below?
A.(5,7/2)
B.(5,7)
C.(5/2,7)
D.(5/2,7/2)

Answers

Answer:

D

Step-by-step explanation:

[tex](x_{1},y_{1}) = (2 , 2)\\\\ (x_{2},y_{2}) = (3 , 5)\\\\\\Midpoint=\left(\dfrac{x_{1}+y_{1}}{2},\dfrac{x_{2}+y_{2}}{2} \right)\\\\\\=\left(\dfrac{3+2}{2},\dfrac{5+2}{2} \right)\\\\\\= \left(\dfrac{5}{2},\dfrac{7}{2} \right)[/tex]

Solve for the missing side length

Answers

Answer:

x = 10

Step-by-step explanation:

Similar right triangles (angle marked congruent).

Same proportion of corresponding sides:

x/15 = 14/21x/15 = 2/3x = 15*2/3x = 10

Line /1 and line /2 are parallel lines. Determine the measures of <1 though <12

Answers

Answer:

1=56⁰

2=56⁰

3=68⁰

4=68⁰

5=56⁰

6=112⁰

7=180-124 Ans=56⁰

8=68+56 Ans=124⁰

9=68⁰

10=112⁰

11=124⁰

12=56⁰

a line that passes through the point (4, 2) and has the slope of -3/2

Answers

The answer is: y = -3/2 x + 8

Graph:

To find the answer we use the formula;

y-y1 = M1 (x - x1)

y-2 = -3/2 (x-4)

When fully solved: the answer is:
y = -3/2 x + 8

Solve this quadratic equation by factorisation:

2y² + 4y – 30 = 0

my answer is

(2y+6)×(y-5)
2y+6=0 or y-5=0
y=-3 or y=5
is that correct?

Answers

Answer:

Y=5 y=-3

Step-by-step explanation:

Two real solutions:

y =(2+√64)/2=1+4= 5.000

or:

y =(2-√64)/2=1-4= -3.000

Pahelp yawa T^T[tex]{\blue{\rule{25pt}{1pt}{\purple{\rule{30pt}{3pt}{\red{\rule{50pt}{5pt}{\purple{\rule{30pt}{3pt}{\blue{\rule{25pt}{1pt} }}}}}}}}}}︎︎︎︎︎︎︎︎ ︎︎︎︎︎︎︎︎[/tex]

pasagut 6-7 lang T^T
sabog na akow HAHAH​

Answers

ACcBD

6-7

y < -1 -4

x > -4 y ≥+ 2

hope it helps

wait Lang SA 6-7

Answer:

ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok

Find the value of X in each case

Answers

x = 49° [ Alternate angles are equal]

4x = 4 × 49 = 196°

- BRAINLIEST answerer

A local store sells bags of game pieces with various colors. Four out of every 19 pieces are red. The store sold a bag with 76 game pieces. What number of the game pieces are red? Write your answer as a whole number.

Answers

Answer:

16 game pieces that are  red

Step-by-step explanation:

Lindsey drew a scale of a city. the scale of the drawing is 1 inch = 3 yards. If the actual length of a neighborhood park is 114 yards, how long is the park in the drawing?

Answers

Answer:

38 in

Step-by-step explanation:

114 yds divided by 3 = 38 in

Marsha Hansen, the manager of the Flint Plant of the Michigan Company is responsible for all of the plant's costs except her own salary. There are two operating departments within the plant, Departments A and B. Each department has its own manager. There is also a maintenance department that provides services equally to the two operating departments. The following information is available.    (on the picture)            Departments managers are responsible for the wages and supplies in their department. They are not responsible for their own salary. Building rents, utilities, and maintenance are allocated to each department based on square footage. Required: Complete the responsibility accounting performance reports below that list costs controllable by the manager of Department A, the manager of Department B, and the manager of the Flint plant.

I will post the template too

Part 1:​

Answers

Answer:

Hello

Step-by-step explanation:

Is the following relation a function?
X. Y
-1. -2.
2. 3
3. 1
6. -2

Answers

Answer:

Step-by-step explanation:

x y

−1 −2

2 3

3 1

6 −2

Answer:

no

Step-by-step explanation:

6 and -2 is not a function

Help me answer 1c, thank you!

Answers

Answer:

bilmiyom bu kadar cevap

A family gathered 20 small sea shells from the beach brining the total number of small seashells in their collection to 41.

Which equation can be used to find, x, the number of small sea shells in the collection before the 20 were added


A:. 20_x =41

B:. x- 21 =41

C:. x + 20 =41

D:. 20x=41





HELPPPP
EXCEPT PT TH 20_x UNDER EACHOTHER PLS​

Answers

Answer:

C, x + 20 = 41

Step-by-step explanation:

X represents the number of small sea shells that we originally had. When the family adds 20 more shells, that makes x + 20. The total number is 41, so that means the number of sea shells they already had (x) plus the number of sea shells they collected (20) equals the number of shells they have now (41).

A 16" × 16" square tray can hold at most 9 bagels placed side by side, as shown below. At most how many bagels can a 32" × 32" square tray hold if bagels are placed side by side?\

Answers

Answer:

At most it can hold 18 bagels

Step-by-step explanation:

So we can make this an equation

16 · 16 square tray = 9 bagels on top of it

We just doubled both sides of it

giving us 32 · 32 square tray = 18 bagels can be held.

how do i convert 5/6 into a decimal

Answers

~fractions

=============

5/6

= 5 ÷ 6

= 0,83333333333

rounded to

= 0,833 ✔️

~ nice to help you ^^

Answer:

⅚ = ...

= 5 ÷ 6

[tex] \approx \bold{0.833}[/tex]

PLS ANSWER THE PICTUREEE

Answers

Answer:

1.12

2.11

3.19

Step-by-step explanation:

Sana nakatutulong

#Carry on learning

Pa brainliest po

Determine the relationship between The two triangles on whether or not they can be proven to be congruent

Answers

Answer:

ASA congruence

Step-by-step explanation:

here two angles and in between side are equal for these two triangles

work out the value of 35-3×9
you must remember to do the bidmas or bodmas in those type of question
First you must try to do multiplie this question 3×9 = 27
than subtract
35-27 =8
8 is final answer ​

Answers

Answer:

8

Step-by-step explanation:

35-3×9=35-27

=8

Hope this helps!!!

NEED HELP PLS
Marques was out at a restaurant for dinner when the bill came. He wanted to leave a tip of 32%. What number should he multiply the cost of the meal by to find the total plus tip in one step?​

Answers

Answer:

1.32

Step-by-step explanation:

1.32

The answer is 1.32

For this problem, percentage can be looked at as a fraction out of 100:

The total = 100/100 or 100% and the tip of 32% is 32/100. 32/100 + 100/100 = 132/100 which equals 1.32

(This type of reasoning can be applied to pretty much all percentages, as they are basically just fractions/decimals)

What is 919,827 rounded to the nearest hundred

Answers

Answer:

919,800

Step-by-step explanation:

To round up, the tens place would have to be either 5 or higher. Since the number in the tens place is 2, which is under 5, it will stay the same.

Can someone Please answer this question fast?

Answers

Answer:

It is impossible to convert in square form.

Try quadratic formula

What is 2+x=4 please help

Answers

Answer:

2+x=4

x = 4 - 2

x = 2

Step-by-step explanation:

........

Please take a look at the picture.

Answers

13/12 is the answer

Answer:

[tex]1 \frac{1}{12} [/tex]

Step-by-step explanation:

Question:To find the value of b.

Equation:[tex]b - \frac{7}{4} = - \frac{2}{3} [/tex]Solution :

[tex] = > b - \frac{7}{4} = - \frac{2}{3} [/tex]

[tex] = > b = - \frac{2}{3} + \frac{7}{4} [/tex]

As when -7/4 goes on the other side becomes +7/4

[tex] = > b = \frac{ - 8 + 21}{12} [/tex]

Simplification

[tex] = > b = \frac{13}{12} \: or \: 1 \frac{1}{12} [/tex]

(Ans)

Drag each statement to show whether it is true, based on
the graph

Answers

Answer:

  see attached

Step-by-step explanation:

The independent variable is the one displayed on the horizontal axis: pounds. The dependent variable is the one shown on the vertical axis: cost.

Then the ordered pair shown represents ...

   (pound, cost) = (0.65, 2.20)

That is, the cost of 0.65 pounds is $2.20. The cost per pound is found by dividing cost by pounds:

  price per pound = $2.20/0.65 lb

__

There is no information shown regarding the weight or cost of a bag of almonds.

The categorization is shown in the attachment.

Pls help with this:/

Answers

9514 1404 393

Answer:

  a.  y = -1/3x +7/3

  b.  f(6) = 1/3

Step-by-step explanation:

The two given points are (1, 2) and (4, 1). The slope of the line between them is given by the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (1 -2)/(4 -1) = -1/3

The point-slope form of the equation of the line is ...

  y -k = m(x -h) . . . . . . line with slope m through point (h, k)

We can add k to both sides of this equation and substitute for our slope (-1/3) and the first point (1, 2). This gives ...

  y = m(x -h) +k

  y = -1/3(x -1) +2

  y = -1/3x +7/3 . . . . eliminate parentheses

__

b. The value of y when x=6 is ...

  y = -1/3(6) +7/3 = (-6 +7)/3

  y = 1/3

That is, for f(x) = -1/3x +7/3, ...

  f(6) = 1/3

If g(x)=5|30x+4|, find g(2/3)​

Answers

Answer:

Step-by-step explanation:

g(x)=5|30x+4|

g(2/3)=5|30×2/3+4|

=5|20+4|

=5×24

=120

Other Questions
How will you make a cheer dance routine in a solo performance essay. Which of the following best supports the idea that Turner took a positive view of the effects of the frontier on American History?A. The continual recurrence of these areas of paper-money agitation is another evidence that the frontier can be isolated and studied as a factor in American history of the highest importance B. And now, four centuries from the discovery of America, at the end of a hundred years of life under the Constitution, the frontier has gone, and with its going has closed the first period of American HistoryC. He would be a rash prophet who should assert that the expansive character of American life has now entirely ceased D. The result is that to the frontier the American intellect owes its striking characteristic Define The Meaning Of Organelle "_________ __________."First To Answer Correctly, Gets Brainliest... hey guys! My question is, "Explain how energy can be converted to meet a human need or want." The lessons about potential, and kinetic energy. im super bad at science, so (-_-)// what are saturated and non saturated vapour? Complete with the correct preterite form of the indicated verb.Los equipos no ___________ ganar. (poder)Question 16 options:pudopuedenpudieron What mass of silver can be plated onto an object in 33. 5 minutes at 8. 70 A of current? Ag (aq) e- Ag(s). What was one of the most significant shifts in religion after the Revolution into the nineteenth century, and how did this trend relate to political attitudes during the time The 6 strings on a guitar all have about the same length and are stretched with about the same tension. The highest string vibrates with a frequency that is 4 times that of the lowest string. 1)If the strings are made of the same material, how would you expect the diameters of the lowest and highest strings to compare how did the song "heal the world" affect you? which of the following cities was named after a native american chief? dallas, tx seattle, wa omaha, ne milwaukee, wi how do astronomers determine the origin of a meteorite that reaches earth? What happens to the molecules that make up a chocolate chip as it is heated in the oven? Una pieza cbica de 34 mm de arista tiene una masa de 310,5 g. Determina su densidad, expresada en kg/m3 2. A certain 80 cm spring will stretch (in cm) three-sixteenths the weight (in kg) attached toit. How long will the spring be if a 15-kg weight is attached to it? Over the years people have used much of the oil found under the land Suppose that u =8,2 and v =5,5. What is the angle between u and v , rounded to the nearest degree? If P = {3, 5, 7, 11, 13, 17, 19), what is n(P)? What are the three important elements to consider when defining demand and supply? For questions #9 - 11 "finding the slope" of a linear (straight) line, recall the "tools" that we can use:1) Given a Graph: Slope or "m" = rise/run from one (x, y) point to a second (x, y) point on the line2) Given any two (x, y) points on the line: Slope or "m" = y2 - y1 / x2 - x13) Given a "Table of Values": Choose any two (x, y) points in the table, then calculate the slope using the slope formula - Slope or "m" = y2 - y1 / x2 - x1