PLEASE HELP ME I WILL MARK BRAINLYEST

PLEASE HELP ME I WILL MARK BRAINLYEST

Answers

Answer 1

                               Question 9:

Given the equations

[tex]5x+2y=6;[/tex]

[tex]4x-8y=0[/tex]

solving the system of the equations

[tex]\begin{bmatrix}5x+2y=6\\ 4x-8y=0\end{bmatrix}[/tex]

[tex]\mathrm{Multiply\:}5x+2y=6\mathrm{\:by\:}4\:\mathrm{:}\:\quad \:20x+8y=24[/tex]

[tex]\mathrm{Multiply\:}4x-8y=0\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:20x-40y=0[/tex]

[tex]\begin{bmatrix}20x+8y=24\\ 20x-40y=0\end{bmatrix}[/tex]

[tex]20x-40y=0[/tex]

[tex]-[/tex]

[tex]\underline{20x+8y=24}[/tex]

[tex]-48y=-24[/tex]

[tex]\begin{bmatrix}20x+8y=24\\ -48y=-24\end{bmatrix}[/tex]

[tex]-48y=-24[/tex]

[tex]\frac{-48y}{-48}=\frac{-24}{-48}[/tex]

[tex]y=\frac{1}{2}[/tex]

[tex]y = 0.5[/tex] ( 0.5 is the result of rounding 0.5 to the nearest 0.01)

[tex]\mathrm{For\:}20x+8y=24\mathrm{\:plug\:in\:}y=\frac{1}{2}[/tex]

[tex]20x+8\cdot \frac{1}{2}=24[/tex]

[tex]20x+4=24[/tex]

[tex]\frac{20x}{20}=\frac{20}{20}[/tex]

[tex]x=1.00[/tex] ( 1.00 is the result of rounding 1 to the nearest 0.01 )

So, the solution is:

(x, y) → (1.00, 0.5)

                            Question 10)

Similarly the question 10 can be solved.

Given the equations

[tex]5x+2y=9;\:4x-3y=44[/tex]

solving

[tex]\begin{bmatrix}5x+2y=9\\ 4x-3y=44\end{bmatrix}[/tex]

[tex]\mathrm{Multiply\:}5x+2y=9\mathrm{\:by\:}4\:\mathrm{:}\:\quad \:20x+8y=36[/tex]

[tex]\mathrm{Multiply\:}4x-3y=44\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:20x-15y=220[/tex]

[tex]\begin{bmatrix}20x+8y=36\\ 20x-15y=220\end{bmatrix}[/tex]

[tex]20x-15y=220[/tex]

[tex]-[/tex]

[tex]\underline{20x+8y=36}[/tex]

[tex]-23y=184[/tex]

[tex]\begin{bmatrix}20x+8y=36\\ -23y=184\end{bmatrix}[/tex]

[tex]-23y=184[/tex]

[tex]y=-8.00[/tex]   ( -8.00 Rounded to the nearest 0.01 or  the Hundredths Place )

[tex]\mathrm{For\:}20x+8y=36\mathrm{\:plug\:in\:}y=-8[/tex]

[tex]20x+8\left(-8\right)=36[/tex]

[tex]20x=100[/tex]

[tex]x=5.00[/tex]  ( 5.00 Rounded to the nearest 0.01 or  the Hundredths Place )

So, the solution is:

(x, y) → (5.00, -8.00)


Related Questions

Please help asap.xxx

Answers

Answer:

3,4

Step-by-step explanation:

(3,4)

Step-by-step explanation:

2x+5=17 I need help :(((((((

Answers

Answer:

the answer is 6

Step-by-step explanation:

the first thing you need to do is take 5 away from 17 to get 12 2x=12 then you need to divide 2 from both

Answer:
X=6
Explanation:

What is the slope of the line perpendicular to the line represented by the equation y = 4x - 7? *
a)-1/4
b)-7
c) 4
d)-4

Answers

Answer: im kinda losing brain cells rn

Step-by-step explanation:

Answer:

Step-by-step explanation:

c

What is 50% of a dollar
HELP ME FAST

Answers

Answer:

50 cents

(⓿_⓿)

Robert has been riding his bike at a constant speed for the last 35 minutes. If Robert is traveling at a speed of 9 miles per hour, which equation best represents this relationship between the time in hours, t, and the distance in miles, d?

Answers

Answer:

A

Step-by-step explanation:

I looked it up

Alexandro received two quotes for new carpet for his home. The quote from Home Depot is $0.20 less per square foot than the quote from Lowe's. If Alexandro plans to buy 1,300 square feet of carpet, how do his total costs from the two companies compare? *

Answers

Answer:

Total cost as per Lowe's is $260 more than that of Home Depot.

Step-by-step explanation:

Given that:

Alexandro received two quotes for new carpet.

One from Home Depot and other from Lowe's.

Let quote from Home Depot = [tex]\$x[/tex] per sq foot

As per question statement,

The quote from Lowe's = [tex]\$x[/tex]+0.20 per sq foot

Alexandro plans to buy 1,300 square feet of carpet.

Total Cost as per Home Depot's quote = [tex]\$1300x[/tex]

Total Cost as per Lowe's = [tex]\$(x+0.20)\times 1300 = \$1300x + \$260[/tex]

Now taking the difference of the total cost:

Lowe's total cost - Total cost as per Home Depot.

[tex]\$1300x+\$260 - \$1300x \\\Rightarrow \$260[/tex]

So, the answer is:

Total cost as per Lowe's is $260 more than that of Home Depot.

HELPPP FASTTT PLEASEEEEEEEEEE

Answers

HI is 9 because all angles congruent.

Angle k is 110 degrees because the two sides are equal, their angles are equal. So you have 35+35=70. Angles of triangle add to 180, so subtract 70 from 180 to get 110.

Can someone help me with this question it’s 7.55 x 4.5

Answers

Answer:

33.975

Step-by-step explanation:

If you are going to multiply this by hand, make sure that you add a zero to the end of 4.5 so that it is 4.50. Because there are four decimal places, you need to make sure your answer has four decimal places as well. Then add a row of zeroes to the bottom because anything times zero equals zero. Next, add a zero in the hundredths place and multiply 5 from 4.50 to 7.55. Then, do the same with the 4. Add all your numbers together and you should get 33.9750 or 33.975.

what is tan 30 degrees?
look at photo
i’ll give brainliest

Answers

The answer is e because tan 30 = 57735027 and 1/^3= 57735027

WILL GIVE BRAINLIEST write an equation for the nth term of the sentence and find the 91st term -2,3,8,13,...

Answers

Answer:

y=X+5?

Step-by-step explanation:

This is a hard one but this may be correct

Jessica earns 2,000 per month as a saleswomen. In addition to the salary she earns 80 per product that she sells. If her goal is to earn 10,000 per month, how many products does she need to sell

Answers

Answer:

100 products

Step-by-step explanation:

Jessica earns 2,000 per month as a sales woman

In addition to the salary she earns 80 per product that she sells

Her goal is to earn 10,000 per month

Therefore the number of products that will be sold to attain 10,000 can be calculated as follows

= 80×100

= 8,000

= 8,000+2,000= 10,000

Hence she needs to sells 100 products to attain 10,000

Examine the following table of points, which are all on a certain line.

x y

−2 4

0 2

1 1

3 −1


What is the slope of this line?


Enter your answer as a number, like this: 42


Or, if the slope is undefined, enter a lowercase letter "u," like this: u

Answers

9514 1404 393

Answer:

  -1

Step-by-step explanation:

The slope formula is useful:

  m = (y2 -y1)/(x2 -x1)

  m = (2 -4)/(0 -(-2)) = -2/2 = -1

The slope of this line is -1.

_____

The points on the line drop 1 unit for each 1 unit to the right.

  m = rise/run = -1/1 = -1

(3,-1) slope= 2 what is the equation?​

Answers

Answer:

y = 2x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2, thus

y = 2x + c ← is the partial equation

To find c substitute (3, - 1) into the partial equation

- 1 = 6 + c ⇒ c = - 1 - 6 = - 7

y = 2x - 7 ← equation of line

Does anyone know how to do part b?

Answers

Answer:

No

Step-by-step explanation:

An airline knows that 9 out 50 passengers who book a flight do not show up. If 300 people booked a flight , how many will not show up?

A) 45 passengers
B) 54 passengers
C) 100 passengers
D) 27 passengers

Answers

Answer:

300 divided by 50 is 6. 6 x 9 is 54. your answer is B)54

Step-by-step explanation:

Maria got 50% of the questions correct on her science test. If she got 32 questions correct, how
many questions were on the exam?

Answers

Answer:

64

Step-by-step explanation:

:)

Answer:

64 Questions

Step-by-step explanation

50% x 2 = 100%

32 x 2 = 64

x^2+ 5x – 6.

A.)(x-1)(x+6)
B.)(x+1)(x-6)
C.)(X-2)(x-3)
D.)(x-2)(x*3)

Answers

Answer:

A bruh

Step-by-step explanation:

trust the process

Can someone help me with those and explain please. Ill give brainlist

Answers

Answer:

1. 23x/10

2. 13x/10

Step-by-step explanation:

explanation: find the common denominator and then go from there. i suck at in depth explanations but as long as you get the gist of it youre good

How many times greater is the 6 in the thousands place than the 6 in the hundreds place

Answers

6000 ......welcome.........

(-3,3)
y
1
(12, -3)
What is the slope of the line shown?

Answers

Answer:USE GOOGLE

Step-by-step explanation:

I USE IT EVERY DAY

Answer:

7/5

Step-by-step explanation:

*******************

Use a​ table, an​ equation, and a graph to represent the relationship below.
Ty is 6 years younger than Bea.

Answers

Answer:

Ukwkwkw

Step-by-step explanation:

Answer:

b-6=t  

Step-by-step explanation:

on piece of paper,graph the system of equatons. Then determine which answer choice matches the graph you drew and indetify the solution to the system y=2x-1 y= -x+5

Answers

Answer:

Idisisisos9191929929293938kdidif8c8c8c87c7c7c7c7c

Please help me really quick! :DD

Answers

Answer:

Correct equation: 4b^2 -b-138= 0

Solution: 6 meters

Step-by-step explanation:

The base has to be 6, and that’s the equation that works with that number.

130-y=224
solve for y

Answers

Answer:

Y = -94

Step-by-step explanation:

130 - y = 224     -subtarct 130

-y = 94        -multiply by -1

y = -94

Hope this helps. Pls give brainliest.

Answer:

y = -94

Step-by-step explanation:

130 - y = 224

subtract 130 from both sides

130 - 130 - y = 224 - 130

-y = 94

u want y not -y so divide both sides with "-"

y = -94

What is the solution to the equation 6x - 5 =15
X = 5/6
X = 5/3
X = 10/3
I don’t know

Plz I need this

Answers

Answer:

x=10/3

Step-by-step explanation:

step 1: add five to both sides to get rid of the -5.

step 2: divide 6 on both sides to isolate the variable

step 3: simplify 20/6 by finding the greatest common factor which is 2.

Answer:

5/3

Step-by-step explanation:

I believe it's the answer because 15 minus 5 is 10 and if you divide it its 3 over 5 but its switched here so your answer is 5/3

A number minus seven is nine.

Answers

Answer:

Your answer would be 16 - 7 = 9.

You can simply add the two numbers and it would still give you the same answer, but I decided to just look for the number.

Step-by-step explanation:

I hope this helped solve your question.

df/ dt = lim f( t + h ) - f(t)
______________
h

Answers

Answer:

boi

Step-by-step explanation:

The following table gives the mean scores for 4 different classes
on the same test.
Class A Class B Class C Class D
72% 82% 63% 78%
What is the combined average for classes A, B, C and D, if
class A has 30 students, class B has 22 students, class C has
35 students, and class D has 27 students?
A
73.8%
73.5%
B
72.6%
D = 71.9%

Answers

Answer:

a

Step-by-step explanation:

a

The answer is to that question is Class A

On a map, a city block is a square with three vertices at (-4,1), (1,1), and (1,-4). What are the remaining coordinates of the remaining vertex ?

Answers

Answer:

(-4, -4)

Step-by-step explanation:

if the solutions of p(x)=0 are -14 and 11, which function could be p?
(A) p(x)=x^2-3x-154

(B) p(x)=x^2-14x+11

(C) p(x)=x^2+14x+11

(D) p(x)=x^2+3x-154

Answers

Answer:d

Step-by-step explanation:

The required function is [tex]P(x)=x^2+3x+154[/tex]. So, option D is correct.

Important information:

The solutions of [tex]p(x)=0[/tex] are [tex]-14[/tex] and 11.

We need to find the function p(x).

Function:

If [tex]x=c[/tex] is a solution of [tex]p(x)=0[/tex], then [tex](x-c)[/tex] is a factor of p(x).

It means [tex](x+14)[/tex] and [tex](x-11)[/tex] are two factor of p(x).

[tex]P(x)=(x+14)(x-11)[/tex]

[tex]P(x)=x^2-11x+14x+154[/tex]

[tex]P(x)=x^2+3x+154[/tex]

Therefore, the correct option is D.

Find out more about 'Function' here:

https://brainly.com/question/19446232

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