Answer two questions about Systems A and B:System A x+3y=−9 2x+y=4 System B 3x+4y=−9 2x+y=4

Answers

Answer 1

Answer:

A=(21/5,-22/5) B=(5,-6)

Step-by-step explanation:


Related Questions

Chrissy buys a pack of candy and eats 2 pieces per day. Find how many she eats in two weeks

Answers

Answer:

In two weeks she eats 28 pieces

Step-by-step explanation

Lets say she ate one per day, if its asking you how many you ate in two weeks, that would be 14 candies. But if she ate 2 per day all you have to do is add 14+14 to find out how many she ate in two weeks.

Answer:28 candies

Step-by-step explanation:

So Chrissy eats 2 each day and we need to find how many candies she eats in two weeks also in weeks there is 7 days plus another week would be 14 basically convert the 2 weeks into days (7+7).Now we need multiply since she eats 2 each day how many candies she eats in two weeks also in week so 2 x 14 =28

Verified answer!

Therefore,she eats 28 candies in 2 weeks

(b) Melissa bought 18 pounds of flour for $10.
How many dollars did she pay per pound of flour?
dollars per pound

Answers

Answer:

$1.80 per pound.

Step-by-step explanation:

You take 18/10 =1.80.

Hope that helps!

Select all answer choices that show a correct comparison. A. 1 2 < 1 5 B. 3 5 > 3 10 C. 2 8 < 1 4 D. 5 6 > 2 5 E. 5 10 > 2 5

Answers

Answer:

78

Step-by-step explanation:

37-71

2538

37003-221

35303

HELP HELP PLSS PLSS I REALLY NEED HELP

Answers

Answer:

the fraction answer would be 6/10, simplified it would be 3/5

if the question is asking for the decimal than it would be 0.6

hope these are the answers you are looking for

Step-by-step explanation:

Answer:

0.6

Step-by-step explanation:

Find last year's salary if, after a 4% pay raise, this year's salary is $41,080.

Answers

Answer:

$39500

Step-by-step explanation:

104%-41080

1%-395

last year's salary=395*100=39500

4x^2-4x=3
Plz will mark brainliest!

Answers

Answer:

=−1/2

=3/2

Step-by-step explanation:

Answer:

x = -1/2

x = 3/2

Step-by-step explanation:

4x² - 4x = 3

Subtract 3.

4x² - 4x - 3 = 0

Factor by grouping.

(2x + 1)(2x - 3) = 0

2x + 1 = 0

2x - 3 = 0

x = -1/2

x = 3/2

good luck, i hope this helps :)

PLEEEASSEEEEE HELP ME...THIS HAS TO BE TURNED IN 10 MINUTES...WILL GIVE BRAINLIEST..there are two pics plllease help me..THAKYOU!!!

Answers

Answer: I cant see the picture

Step-by-step explanation:

Answer:

lol

no

ask

it teacher of it school

if quick will mark brainliest

Answers

I don’t understand what you mean

Answer:

x=15√2

Step-by-step explanation:

15²+15²=c²

225+225=c²

450=c²

√450=c

√9x25x2=c

√9x√25x√2=c

3x5x√2=c

15√2=c

(Or you could use the 45-45-90 rule for triangles to get the same thing).

there are 33 students for 3 classes how many are there per class

Answers

33/3=11
There are 11 students per class.
33 students divided by 3 classes

33 divided by 3= 11

There are 11 students per class

3,012 divided by 7 long division

Answers

Answer:

430.2857...

Step-by-step explanation:

Answer:

[tex]3.012[/tex] ÷ [tex]7[/tex] = 430.285

Whodunnit worksheet, It’s math there are 10 clues and you have to find the last know whereabout, the method and the players, this is just the first sheet

Answers

For the given triangle the statement that is true for length x is -

x < 9

What are triangles?

Triangles are a particular sort of polygon in geometry that have three sides and three vertices. Three straight sides make up the two-dimensional figure shown here. An example of a 3-sided polygon is a triangle. The total of a triangle's three angles equals 180 degrees. One plane completely encloses the triangle.

The length of 1 side is = 5 units

The length of second side is = 4 units

A key geometrical concept that connects the lengths of a triangle's sides is the triangle inequality theorem.

It stipulates that the length of the remaining side must be greater than the sum of the lengths of any two sides of a triangle.

The triangle inequality theorem can be written out as follows if a, b, and c are the lengths of a triangle's sides:

b + c > a

a + c > b

b + a > c

Since the sum for the given triangle is 5 + 4 = 9

So, the third side must be less than 9.

Therefore, the inequality is x < 9.

To learn more about triangles from the given link

https://brainly.com/question/25215131

#SPJ1

HELP
WRITE AS EQUATION IR EXPRESSION
500 decreased by sum of a number and 2 is 300

Answers

[tex]500 - (2 + n) = 300[/tex]

Hope this helps.

please helppp with my geometry

Answers

Answer:

a (-3,6)

b (6,9)

c (9,3)

Step-by-step explanation:

Let U = {2, 3, 4, 5, 6, 7, 8}, A = {2, 3, 4, 5}, B = {2, 3, 6, 7}, and C = {4, 6, 8}. List all the members of the given set. (Enter your answers as a comma-separated list.) (A ∪ B) ∩ C

Answers

Answer:

(2,3,4,5,6,7)

6

Step-by-step explanation:

I thought I'm wrong ...

Solve for the system of equations using elimination

Answers

Answer:

(-1,5)

Step-by-step explanation:

Solve the following system:

2 y + x = 9 | (equation 1)

2 y + 3 x = 7 | (equation 2)  

Subtract equation 2 from equation 1:

( 2 y + x ) - ( 2 y + 3 x ) = 9 - 7

- 2 x = 2

x = - 1

Substitute into question 1:

2 y - 1 = 9

y = 5

Answer: x = -1 , y = 5

factorise 6n-10
how do you do it?

Answers

Answer:

Step-by-step explanation:

given

6n - 10

Take 2 as common then

2 ( 3n - 5 )

hope it helps  :)

Answer:

2(3n-5)

Step-by-step explanation:

You need to find the highest common factor (2 in this case).

When the word factorise is mentioned that means there has to be brackets in your answer.

After the highest common factor is found then divide the numbers by it. for example, 6÷2 and -10÷2.

Hope that helps!!

45 = w − 54 What is the android

Answers

Answer:

w = 99

Step-by-step explanation:

45 = w - 54

99 = w

good luck, i hope this helps :)

Answer:

W=99

99 minus 54 equals 45.

2radical3+3radical2
Rationalize the denominator (simplify)
(3-√2​

Answers

Step-by-step explanation:

ucixidepchflgkckcudkchdkgldjcisifiic

Estimated salary 22,348.20+2766.20 what is the salary for an employee with 24 years experience

Answers

Answer:

bhfbdk,ndjjxbxbbrvehfhfghj ccpdldkkxnrnfncmfmgn rt-

tres carpinteros juan alberto y luis se encargaron de hacer 6 mesas iguales por lo que recibieron $600 pesos juan hizo una mesa alberro hizo 2 mesas y luis 3 mesas cuanto dinero corresponde a cada uno​

Answers

Answer:

primero divides 600 entre 6 te da 100

entonces cada mesa vale 100 pesos así que

100x1:100 así que a juan le tocan 100 pesos

100x2:200 así que Alberto le tocan 200 pesos

100x3:300 así que a Luis le tocan 300 pesos

Me das coronita plis

The Patterson's are saving up to go on a family vacation in 2 years. They invest $2900 into an account with an annual interest rate of 1.14% compound daily. How much is earned on the investment after 2 years?

Answers

i’m not very sureee butttt i can tell you what

{{6- '6) '(+ '9) '(l '.) '(6 '9-) (7-'9-)}

Answers

don't know

Mark as brainlist mate

because making my answer as brainlist you would not lose anything।।।।।।।।।।

And about your answer do it Yourself because in paper we won't be helping you for your problem।so do it Yourself your knowledge will be gain।

Please help I’m really stuck on this

Answers

Answer:

120

Step-by-step explanation:

Above 44 years ----> 45 to 84.

44 - 64   range 70 are there

65 to 84 range 50 are there

Totally 70 + 50 = 120

 120 residents

solve the equation 3tan(2x+15°)=4 for 0°is less than equal to x and 180° is greater than equal to x.

Answers

Answer:

[tex]3tan(2x+15)=4\\or, \frac{tan2x+tan15}{1-tan2x.tan15} =\frac{4}{3}\\or, 3tan2x+3tan15=4-4tan2x.tan15 \\or, 3tan2x+4tan2x.tan15=4-3tan15\\or, tan2x(3+4tan15) = 4-3tan15\\or, tan2x = \frac{4-3tan15}{3+4tan15}\\or, 2x =tan^{-1}(\frac{4-3tan15}{3+4tan15})\\or, x = \frac{tan^{-1}(\frac{4-3tan15}{3+4tan15})}{2} = 19.06505118 (approximate)\\[/tex][tex]Note: tan30 = \frac{2tan15}{1-tan^{2}15}\\or, \frac{1}{\sqrt{3} } = \frac{2tan15}{1-tan^{2}15}\\or, 1-tan^{2}15 = 2\sqrt{3}tan15\\or, tan^{2}15+2\sqrt{3}tan15-1=0\\Solve~using~the~quadratic~formula~to~get~tan15^o=2-\sqrt{3}.[/tex]

A box with a square base and no top is to be made from a square piece of carboard by cutting 4 in. squares from each corner and folding up the sides. The box is to hold 4096 in3. How big a piece of cardboard is needed?

Your answer is:
in. by
in.

Answers

Answer:

oh wait I'm bad - ignore this first answer lol - I didn't read the part that says cutting 4 in. squares off the corners

Here's my previous one if you wanna see it though:

Answer:

A = 1280 in²

Step-by-step explanation:  

We know that the volume of a cube is A = a³, where a is the length of one of the edges.  

So, to find a:  

a³ = 4096

a = ∛4096  

a = 16 in

Now, we need to find the surface area of the square on the cube, where:

A = 6a², because we are making a box (that is empty inside).  

However, we need to change the formula to:

A = 5a², because the problem says that there is no top (so there are only 5 squares)

A = 5(16)²

A = 1280 in²

"4 times the difference of 3 and y"

A: 1-y

B:4(3-y)

C:3(4-y)

D:4x(3-y)

Answers

Answer:

B. 4(3-y) is the answer

B is the answer.....

Which of the following expressions is equivalent to: 4x-12 *
16x
O
-8x
4(x-3)
O
4 + X-12
O
4(x-12)

Answers

Answer:

4(x - 3)

Step-by-step explanation:

4x = 4 * x

12 = 4 * 3

GCF = 4

4x - 12 = 4*x - 4*3

           = 4(x - 3)

                                                                                    the second one.

............................

For 50 consecutive days, a process engineer has measured the weight of a component after it has been coated with special paint. Each day, she takes a sample of 10 components. The average across all 500 components is 45.343019 grams. The average range across all parts is 0.0076382 grams. When constructing an X-bar chart, what would be the centerline, and what would be the upper and lower control limits

Answers

Answer:

UCL (X-bar) = X mean+ (A2 x R-bar)

LCL (X-bar) = X mean -(A2 x R-bar)

Center line = Mean

A2 for sample size of 10 = 0.308

X mean = 45.343019

R bar = Average of range = 0.0076382

UCL (X-bar) =45.343019+(0.308*0.0076382) = 45.3453715656 grams

LCL (X-bar) = 45.343019-(0.308*0.0076382) = 45.3406664344 grams

Center line = Mean = 45.343019

Find the diameter of the circle with a circumference of 80 feet. Use 3.14 for pi. Round your answer to the nearest tenth.

12.7 ft
25.5 ft
40.0 ft
50.9 ft

Answers

Answer:

Option B = 25.5 ft

Step-by-step explanation:

Circumference = 80 ft

C = 2πr

80 = 2 * (22/7) * r

80 = (44/ 7) *  r

So, Radius (r) = 80 * (7/44)

        = 12.72 Feet

--> Diameter = 2r = 2 * 12.72    

= 25.45 Feet

Therefore, Answer = Option B = 25.5 Feet (Round off)

In the first year of a 10,000 investment the interest rate was 6%. All earned interest remained invested for the second year, and the interest rate increased to 7%. What was the percent increase of the entire investment after two years?

Answers

Answer:

13.4%

Step-by-step explanation:

First year:

$10,000*6% = $600

New balance = $10,600

Second Year:

$10,600*7% = $742

$10,600+ $742 = $11,342

Total Return:

Final Balance - Initial balance

$11,342 - $10,000 = $1,342

$10,000*x ÷ $1,342

x = $1,342/$10,000

x = 0.1342

0.134 = 13.4%

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