7) 5x – 3y – 4z = 24
5x + 3y + 5z = 27
4x - 3y + 5z = 28

Answers

Answer 1

Answer:

Step-by-step explanation:


Related Questions

turn 1.5(5 is repeating) into a mixed fraction

Answers

Answer:

14/9 or 1 5/9

Step-by-step explanation:

Answer:

1 [tex]\frac{5}{9}[/tex]

Step-by-step explanation:

We require 2 equations with the repeating digit placed after the decimal point

let x = 1.555... (2) Multiply both sides by 10

10x = 15.555.... (2)

Subtract (1) from (2) thus eliminating the repeating digits

9x = 14 ( divide both sides by 9 )

x = [tex]\frac{14}{9}[/tex] = 1 [tex]\frac{5}{9}[/tex]


Writing lan's car can go 296 miles on 8 gallons of gas. During a drive last weekend, lan used
7 gallons of gas. How far did he drive? Use pencil and paper. Explain how the problem changes if
you were given the distance lan drove last weekend instead of how much gas he used

Answers

Answer:

259 miles

Step-by-step explanation:

296 miles on 8 gallons of gas.

Find the miles on 1 gallon of gas:

296/8 = 37 miles

Find the distance on 7 gallons of gas:

7*37 = 259 miles

Given :

Writing lan's car can go 296 miles on 8 gallons of gas. During a drive last weekend, lan used7 gallons of gas.

To find :-

How far did he drive?

Solution :-

According to Question ,

Car can go 296 mi on 8 gallons of gas.

Using Unitary Method ,

On 1 gallon of gas it will go 296/8 miOn 7 , it will go 296/8*7 = 259 miles

Hence the required answer is 259 miles

Solve. 39 divided by 11

O A) 3 5/11
O B) 3 6/11
O C) 11 1/2
O D) 6 3/11

Answers

The answe r is d lol

Choose the system of inequalities that best matches the graph below

Answers

Step-by-step explanation:

the correct answer is :

C. y ≥ 2x-1

y ≤ ⅓x + 1

I need help again you guys hehe plz help :)​

Answers

a is just 7.8
B is -1/5
C is -2.2
D is -3 1/8
Not gonna do the bottom ones cause I don’t feel like doing them but there’s the first 4

help plshelp plshelp plshelp plshelp pls

Answers

Answer:

90 grams of paint

Step-by-step explanation:

Easy, if you check this is a 3 x 3 x 2 cube which totals 18

So if each small cube is 5 grams

18 * 5 = 90

90 grams of paint cuhhh

What is the scale factor of point E (original point) to point F (new point) with P as the center of dilation.

Answers

Answer:

Answer is last alternative

scale factor (2)

Two quantities can only be added when they are ________​

Answers

This question has been answered in a secondary question post by the OP.

Penny reads 11 pages in 1/3 hour. What is the unit rate for pages per hour? For hours per page?

Answers

Answer: 33

Step-by-step explanation:

Answer:

33 pages per hour

Step-by-step explanation:

1. To solve for how many pages Penny can read in one hour, we need to write a ratio of pages to hours.

[tex]11: 1/3 = x : 1[/tex]

2. Now, 1/3 goes into one, three times. This means that 11 goes into x, three times. We can write "11 goes into x, three times" as: [tex]\frac{x}{11} =3[/tex].

3. (Solving x/11 = 3)

Step 1: Multiply both sides by 11

[tex]\frac{x}{11}*11=3*11[/tex] [tex]x = 33[/tex]

Therefore, Penny read 33 pages per hour.

What is the total price of a $45.79 item when a 7% taxe is added

Answers

Answer:

$42.58

Step-by-step explanation:

You would multiply the price of the item (45.79) by the percentage as a decimal (0.07) and subtract the product.

in this case:

45.79x0.07 = 3.205 (rounded 3.21)

45.79-3.21 = 42.58

please answer my question

Answers

Answer:  

Graph C

Step-by-step explanation:  

They are "opposites" for each other, and aside from 0, are functions.

(answered this on your other question, but I will put it here too!)

Son "opuestos" entre sí y, a excepción de 0, son funciones.

(respondí esto en tu otra pregunta, ¡pero también lo pondré aquí!)


Solve for m angle HIJ if m angle HIK=50^ and m angle KIJ=53^ .

Answers

m<HIJ is 103°

Step-by-step explanation:

hik= 50 and kij = 53

50+53=103°

plssss heeeeeeeeeeeeeeelp​

Answers

Answer:

-25

Step-by-step explanation:

brainliest?

What are the vertical and horizontal asymptotes for the function?


I already know the answer i just need an explanation on why D is correct

Answers

Answer:

What is the function, please?

Step-by-step explanation:

Help please asap give an explanation too.

A tarp is used to keep the infield of a baseball field from getting wet. The infield is a square. The corners of the square tarp are anchored at each base. The tarp is 8,100 square feet.
A. What is the distance between the first and second base?
B. Is 8,100 a perfect square? Explain.

Answers

I’ll do my best, but...

A. Since the area is 8100 sq ft and the shape is a square (area of a square = length x width) you take the square root of 8100 and get 90 ft as one of the sides. (90 ft x 90 ft = 8100 sq ft)

B. Yes, 8100 is a perfect square. A perfect square is a number made by squaring a whole number. It’s also the product of 2 equal integers. In this case, it’s 90.

Hope this helped, math isn’t my strong suit!

Line m passes through the points (2, -7) and (4, -9) line m is parallel to which line

Answers

Answer:

D............... y= -1

Answer:

Option A. y= -x + 2

Step-by-step explanation:

RATE BRAINLIEST

we first have to find m which is the slope. The equation are parallel when they have the same slope

(2,-7) and (4,-9)

m = 4-2/ -9-(-7)

=2/-2

m = -1

Option A. y=-x + 2

Jethro used dimensional analysis to convert one rate of speed to another. Two of the conversion factors he used are 5280 ft/1 mi and 1 hr/60 min. What could be the units of the initial rate of speed and the final rate of speed? Justify your answer.

Answers

The units of the initial and final rates of speed are;

Initial rate of Speed = ft/hr

Final rate of speed = mi/min

We are told that the conversion factors he used are;

5280 ft/1 mi and 1 hr/60 min

Now, the meaning of 5280 ft/1 mi denotes that;

5280 ft mile is equivalent to 1 mile

This means that the initial distance unit used was ft while the final one was mile

Also, 1 hr/60 min denotes that;

1 hour is equivalent to 60 minutes.

This means that the initial time units used was hour while the final one was minute.

In conclusion, since we know the initial time and distance units used, we can say that the initial rate of speed ft/hr while final speed rate was miles/minutes.

Read more at; https://brainly.com/question/17734333

work out x pls anwser pls

Answers

Answer:

66?

Step-by-step explanation:

180 degrees in a triangle, add 79 and 35 together = 114

180 - 114 = 66

Answer:

66°

Step-by-step explanation:

All angles in a triangle add up to 180° . Therefore you will need to add up 79° and 35° then subtract it from 180° in order to find the missing angle x.

If 15% of 4x is 20 less than x, what is the value of x?

Answers

The sentence "15% of 4x is 20 less than x"

translates to    0.15 • (4x)  = x – 20

Solving that…

    0.15(4x) = x - 20           multiplipy 0.15•4

          0.6x = x - 20           subtract x from both sides

         -0.4x = - 20              divide both sides by -0.4

                x = 50

Phương trình lượng giác

Answers

Answer:

Phương trình lượng giác là phương trình liên quan đến một hoặc nhiều tỉ số lượng giác của các góc chưa biết. Nó được biểu thị dưới dạng tỷ số của các góc sin (sin), cosin (cos), tiếp tuyến (tan), cotang (cot), secant (giây), cosecant (cosec). Ví dụ, cos2 x + 5 sin x = 0 là một phương trình lượng giác.

Step-by-step explanation:

can y'all help me with this one I'm stumped, 1 + k over 5 equals -1​

Answers

Answer:

k=-10

Step-by-step explanation:

first subtract the 1 from both sides

so then you have k/5=-2

then multiply by 5 on both sides

which gives you k=-10

At the beginning of the week, Aksa’s parents deposited $20 into Aksa’s lunch account. The amount of money Aksa had left after each day is shown in the table, where x is the number of days and y is the remaining balance.

a. What are the x- and y-intercepts?

b. What do the x- and y-intercepts represent?

Answers

づりんっフィクションって言うからせが低いので、お気をつけて

Here we need to plot x and y co-ordinates from the given table.

What are x and y co-ordinates and intercepts ?

This is 2D co-ordinate geometry here we have an x axis and a y axis we use co-ordinate geometry to plot lines and curves according to the gives question.when the question consist of linear equations they form straight lines and when questions consists of quadratic and higher degree polynomials they form curves.

a. Here the the days are represented by x and remaing balance are represented by y.

So, when x = 0, y = 20 is co-ordinate form we can represent this as (0,20)

similarly the other co-ordinate points are (1,16), (2,12), (3,8), (4,4), (5,0).

b. x- and y- intercepts represnts the value of one variable corresponding to the other variable.

Learn more about co-ordinates and intercepts here :

https://brainly.com/question/21529846?referrer=searchResults

#SPJ2

Solve each compound inequality

10m > 84

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

let's solve :

[tex]10m > 84[/tex]

[tex]m > \dfrac{84}{10} [/tex]

[tex]m > 8.4[/tex]

what is the slope in y + 4 = -2(x - 9)?

Answers

Answer:

is y=−2x+14

Step-by-step explanation:

because yo.multipli

Answer:

y- y1 =m(x -x1)

comparing these; -y1= 4;y1 = -4

m= -2 ;x1 = 9

The slope is -2

Step-by-step explanation:

PLS MARK BRAINLIEST

a carpenter is fitting some bookcases to an alcove, using as much of the space as possible from floor to ceiling, a height of 2.5 m. The books to be fitted into the shelves are 210 mm high and a gap of at least 30 mm is necessary above each book so that they can be removed. The shelves are 20 mm thick. The alcove is 1.2 m wide. The bottom shelf should not be less than 300 mm from the ground, as the house-owner cannot bend down easily. How many shelves can be fitted into the alcove?

Answers

The number of shelves that fit in the alcove is given by the height of each shelve and the height of the bookshelf above the ground

The number of bookshelves that fit into alcove, is 8 bookshelves

Reason:

Height of the alcove = 2.5 m

Height of the books = 210 mm = 0.21 m

The gap above each book = 30 mm = 0.03 m

The thickness of the shelves = 20 mm = 0.02 m

Width of the alcove = 1.2 m

Height of the bottom shelf above the ground = 300 mm = 0.3 m

Required:

The number of shelves that can be fitted into the alcove

Solution;

Let x, represent the number of shelves that can be fitted into the alcove

We have;

An initial height of the bookshelves above the ground = 0.3 m

Height of a shelve, H = Height of books + Gap above books + Thickness of shelves

Height above ground, including the bottom shelve = 0.3 m

[tex]x = \dfrac{2.5 - (0.3)}{0.02 + 0.03 } = 8\frac{6}{13}\approx 8.46[/tex]

Therefore, the maximum number of whole bookshelves that can be fitted into alcove, x ≈ 8 bookshelves

Learn more here:

https://brainly.com/question/23945932

LOOK AT SCREENSHOT WILL MARK BRAINLIEST WORTH 15 POINTS

Answers

[tex]m=7, (-5,1)[/tex]

In standard form it is [tex]y=7x+36[/tex] and in point-slope form it is [tex]y-43=7(x-1)[/tex].

A sample of 400 observations will be taken from an infinite population. The population proportion equals 0.8. The probability that the sample proportion will be greater than 0.83 is___

Answers

ANSWER:

401.63

____________

hope it helps you

can you brainlest me

if f(x) = 11x + 8 find f(0)

Answers

Answer:

f(0) = 8

Step-by-step explanation:

x = 0

11(0) + 8 =

0 + 8 =

8

Answer:

[tex]\large\boxed{\mathtt{f(0)=8}}[/tex]

Step-by-step Explanation:

[tex]\textsf{We are asked to simplify the function.}[/tex]

[tex]\textsf{We are given f(0). 0 is substituted inside as the x.}[/tex]

[tex]\textsf{Let's substitute 0 into x.}[/tex]

[tex]\large\underline{\textsf{Substitute;}}[/tex]

[tex]\mathtt{f(0)=11(0)+8}[/tex]

[tex]\large\underline{\textsf{Multiply;}}[/tex]

[tex]\mathtt{f(0)=8}[/tex]

[tex]\large\underline{\textsf{Note that;}}[/tex]

[tex]\textsf{When you are asked to simplify a function, they're mainly asking you to substitute.}[/tex]

[tex]\textsf{The Order of Operations (PEMDAS) \underline{still} applies here.}[/tex]

FRACTIONAL INDICIES HELP IS APPRECIATED A LOT

Answers

Answer:

1. 625/3

2. 5/8

3. 4/9

4. 1/3

5. 2

I need help with this!!​

Answers

Answer:

i think c

Step-by-step explanation:

hope it helps :)

The question is really asking what the slope (m) of the line is. Here’s the answer:

Slope= the variable m

m=rise/run; m=change in y/change in x

We need to find the rate of how much the taxi driver charges per minute.

Therefore:

We need to pick a precise point on the line ( a precise point is a point with whole number x and y coordinates; no decimals or fractions).

We see that the point (6, 9) is precise.

A rate is a ratio in the form of a fraction that shows the relationship of change between two quantities: a/b.

So, the taxi costs 9 dollars / 6 minutes.

9/6 simplifies 2/3.

And thus, the taxi charges 2 dollars per 3 minutes

So, the answer is 9/6, which can be simplified to the furthest possibility, making it a unit rate.

Answer: 9/6



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