what of the following us a solution to the system of equations​

What Of The Following Us A Solution To The System Of Equations

Answers

Answer 1

Answer:

(- 1, - 5 )

Step-by-step explanation:

Given the 2 equations

y = 3x - 2 → (1)

6 + y = - x → (2)

Substitute y = 3x - 2 into (2)

6 + 3x - 2 = - x

4 + 3x = - x ( add x to both sides )

4 + 4x = 0 ( subtract 4 from both sides )

4x = - 4 ( divide both sides by 4 )

x = - 1

Substitute x = - 1 into (1) for corresponding value of y

y = 3(- 1) - 2 = - 3 - 2 = - 5

solution is (- 1, - 5 )


Related Questions

What is the slope of the line?

Answers

Answer: -5/2

Explanation: Rise over Run. Since the line is going downwards, the slope is negative

Evaluate the expression and select the appropriate response. 4.25 + 3.50 + 8.25

Answers

Answer:

The answer is 16.

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

just simply add all of the terms together.

Choose all of the formulas you would use to find the volume of the compound solid shown here.
V=nrn
V = ਗr
V = Turn
V = 47112

Answers

Answer:

v= pi*r^2*h

v=1/3 * pi*r^2*h

Need help with exponential functions for a test!!!!!

The growth of a certain organism can be modeled by C(t)=10(1.029)^24t, where C(t) is the total number of cells after t hours. Which function is approximately equivalent to C(t)?

1. C(t) =240(0.083)^24t
2. C(t)=10(.083)^t
3. C(t)=10(1.986)^t
4. C(t)= 240(1.986)^t/24

Answers

Given:

The function is:

[tex]C(t)=10(1.029)^{24t}[/tex]

Where, C(t) is the total number of cells after t hours.

To find:

The function that is approximately equivalent to C(t).

Solution:

We have,

[tex]C(t)=10(1.029)^{24t}[/tex]

It can be rewritten as:

[tex]C(t)=10(1.029^{24})^{t}[/tex]            [tex][\because (a^m)^n=a^{mn}][/tex]

[tex]C(t)\approx 10(1.986)^{t}[/tex]         [tex][\because 1.029^{24}\approx 1.986][/tex]

The function [tex]C(t)=10(1.986)^{t}[/tex] is approximately equivalent to C(t).

Therefore, the correct option is 3.

Answer:

c

Step-by-step explanation:

A motorcycle raced around a track at a speed of 110 miles per hour.

If the motorcycle raced for 0.5 hours, how many miles did it travel?

Answers

If it’s going 110mph, and the question if asking how many mph will it go for half an hour. Simply just take 110 divided by 2.
Which gives u 55

Raul uses a credit card to take out a 3-year loan of $4500 at a rate of 15% to purchase
carpeting for his house. What will be the total amount he will repay for this loan?

Answers

Answer:

Amount of loan pay = $6.840 (Approx.)

Step-by-step explanation:

Given:

Amount of loan borrow = $4,500

Rate of interest = 15% = 0.15

Number of year = 3 year

Find:

Amount of loan pay

Computation:

Future value = Present value[1+r]ⁿ

Amount of loan pay = Amount of loan borrow[1+r]ⁿ

Amount of loan pay = 4,500[1+0.15]³

Amount of loan pay = 4,500[1.15]³

Amount of loan pay = 4,500[1.52]

Amount of loan pay = $6.840 (Approx.)

a
b
c
d







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Answers

it's not A or D

Step-by-step explanation:

math I guessssssss

Answer:

D

Step-by-step explanation:q

If you have a 30 degree reference angle, the side opposite (the side not part of the reference angle) is 1/2 the size of the hypotenuse.

Since the side opposite is 12, the hypotenuse is easily found.

1/2 = opposite / hypotenuse

1/2 = 12 / hypotenuse                     Cross multiply

hypotenuse = 2 * 12

hypotenuse = 24

Now use the Pythagorean Theorem to get the third side.

c = 24

a = 12

b = ?

a^2 + b^2 = c^2

12^2 + b^2 = 24^2

144 + b^2 = 576                                  Subtract 144 from both sides.

b^2 = 576 - 144

b^2 = 432

Now  you have to factor 432 down to its primes

432 = 2 * 2 * 2 * 2 * 3 * 3 * 3

The rule is for every two 2s you take one outside the root sign and throw the other one away. If there are an odd number of factors, leave one of them under the root sign.

sqrt(b^2) = sqrt(432)

b = 4 * 3sqrt(sqrt(3))

b = 12 sqrt(3)

Answer

r = 12*sqrt(3)

t = 24

The answer is D

An experiment consists of spinning a spinner. Use the results in the table to find the experimental probability of the spinner not landing on red.
Red = 8
Blue = 7
Green = 9
Yellow = 6

A. 3/5
B. 11/15
C. 2/5
D. 4/15

Answers

Answer:

Probability(Not red) = 11 / 15

Step-by-step explanation:

Given:

Outcomes;

Red = 8

Blue = 7

Green = 9

Yellow = 6

Find:

Probability(Not red)

Computation:

Probability(Not red) = 1 - Probability(red)

Probability(Not red) = 1 - [Number of red/ Total]

Probability(Not red) = 1 - [8/(8+7+9+6)]

Probability(Not red) = 1 - [8/30]

Probability(Not red) = 1 - [4/15]

By taking LCM

Probability(Not red) = (15 - 4) / 15

Probability(Not red) = 11 / 15

please please help!!, please show help if possible :D

Answers

the answer would be seven i think

plz help i need this right now

Answers

2,460.375 because 13.5x13.5x13.5 is how you calculate the volume

Which of the following
could be the equation of a trend
line for the scatter plot shown?
A. y = -3x - 6
B. y = -4x + 8
C. y = 2.5x + 7
D. y = x -8

Answers

Answer:

i think b. it's the only answer that would make sense.

Step-by-step explanation:

let me know if this is wrong.

What is the value of the expression 3b+20 for b=30

Answers

Answer:

110

Step-by-step explanation:

3×30=90

90+20=110

hope this helps

plz can i get brainliest:)

(HURRY PLZ)Use the given angle measures to answer the following
questions.
M m Activity 1 of 2
Part A: If Angle A and Angle B are vertical angles,
what is value of x?
A:10
в:35
C: 28
D: 8
Activity 2 of 2
Part B: If Angle A and Angle B are supplementary
angles, what is measure of
Angle B?
A :90 °
B :28 °
C :180 °
D: 140 °

Answers

Answer:

If Angle A and Angle B are vertical angles,

what is value of x?

D. 8

If Angle A and Angle B are supplementary

angles, what is measure of

Angle B?

D. 140

Step-by-step explanation:

If Angle A and Angle B are vertical angles,

what is value of x?

Vertical angles are congruent thus

40° = 5x°

5x° = 40°

(5x / 5)° = (40 / 5)°

x° = 8°

If Angle A and Angle B are supplementary

angles, what is measure of

Angle B?

Supplementary angles add up to 180° or a straight line.

180° – 40° = 140°

The number of music CDs sold in 1993 by one company was approximately 2.4 x 100. The number of music CDs sold by the same
company in 2001was approximately 7.3 x 107. What is the difference in CDs sold between 1993 and 2001?
sobod uopsand
A. 70,600,000

OB. 16,700,000
C. 7,060,000
D. 1,670,000
Reset Selection
US 5:33
o
Lenovo

Answers

Answer:

A

Step-by-step explanation:

3. solve (-7) + b = (-11)

Answers

B= -4 hope this helps!!!

find the area of the shaded part

Answers

Answer:

Step-by-step explanation:

the easiest thing to do is to make the half squares which you have 4 into 2 whole  squares then base times height

4x3=12

Answer:

26cm²

Step-by-step explanation:

Alrighty, let's go count squares:

On the top row, there's 4 (adding the halves together), on the second row there's 5, and on the bottom row there's also 4, so we add that all together to get:

4 + 5 + 4 = 13

But, because each square is 2 cm, we have to multiply:

13 x 2 = 26

So, the area of the shaded section is 26cm²

hope this helps:)

WHAT IS THE HEIGHT OF THE TREE ROUNDED TO THE NEAREST TENTHS PLACE

Answers

Answer:

Where is the number i need to round to?

(Please don't give me a bad rating i'm trying to help :) )

Which is an equation of the line that passes through the points (-3,-4) and (4, 10)?

Answers

Answer:

y = 2x + 2

Step-by-step explanation:

I used the slope formula and slope-intercept form  y = mx+b  to find the equation. Which gave me y = 2x + 2

Hope this helps:)

The median income for a sample of people from Chicago is about $60,000 and the
median income for a sample of people from Kansas City is about $46,000, but
researchers have determined there is not a meaningful difference in the medians.
Explain why the researchers might be correct.

Answers

Answer:

106,000 is the answer help me with my answer to

Answer:

The medians differ by $14,000, but if the IQR is larger than about $7,000, there will not be a meaningful difference between the median salaries in the two cities.

Step-by-step explanation:

Help i will give brainliest and no links or i will report

Answers

Answer:

c

Step-by-step explanation:

math

Carmen will randomly pick one marker from a bowl and one crayon from another bowl.

- There are 4 green markers, 3 brown markers, and 1 purple marker.

- There are 6 orange crayons and 2 yellow crayon.

What is the probability of picking a brown marker and a yellow crayon?

Answers

Brown marker- 3/8 because there are 3 brown out of a total 8.

Yellow crayon- 2/8 = 1/4 because there are 2 yellow out of a total 8. If we simplify that and divide 2 from both sides, we get 1/4. :) Hope that helps! <3

Mr. Juarez opened a savings account with an initial deposit of $560 and will not make any additional deposits or withdrawals. The account earns 1% simple interest. What is the total amount that Mr. Juarez will have in his account at the end of 3 years?

Answers

Answer:

$576.80

Step-by-step explanation:

We have been given that Mr. Juárez opened a savings account with an initial deposit of $560 and will not make any additional deposits or withdrawals. The account earns 1% simple interest.

We are asked to find the total amount that Mr. Juárez will have in his account at the end of 3 years.

We will use simple interest formula to solve our given problem.

[tex]A=P (1+rt)[/tex]

A = Final amount after t years,

P = Principal amount,

r = Annual interest rate in decimal form,

t = Time in years.

Let us convert 1% into decimal form,

1%=1/100=0.01

P=$560 and t=3

A=$560 (1+0.01(3))

A=$560 (1+0.03)

A= $560 (1.03)

A= $576.80

Therefore, Mr. Juárez will have $576. 80 in his account at the end of 3 years. Hope this helps!

A spinner is divided into equal sections, each labeled with a number between 1 and 5? Over the course of 150 spins, what is the best estimate of how many times you would expect that the hand of the spinner will stop on a 3? Need it kinda fast but take your time.

Answers

Answer:

30 times

Step-by-step explanation:

The computation of the number of times that expected to stop on 3 is as follows:

Since there are 150 spins

And, each labeled with a number that lies between 1 and 5

So the number of times should be

= 150 ÷ 5

= 30 times

Hence, the number of times would be 30

Please help I have been stuck for a while now

Answers

Answer:

D

Step-by-step explanation:

The line-of best fit is where a line would be drawn if there was one. The line goes through the majority of the dots and doesn't touch the outliers. Also the line is strait.

Someone please help me I’ll give out brainliest please dont answer if you don’t know

Answers

Answer:

Hey There!

The Answer = 2

[tex]5(x + 2) = 20 \\ x + 2 = 20 \div 5 \\ x + 2 = 4 \\ x = 4 - 2 \\ x = 2[/tex]

Answer:

x=2

Step-by-step explanation:

5(2x+2)=20

5(4)=20

20=20

Eva received a 20% discount when she bought a sweater. The original price of the sweater before the discount was $80. Which was the discount on Eva's sweater?

Answers

Answer:

8

Step-by-step explanation:

Yes

How much do you save using the better buy? 432 for 6 or 364 for 7

Answers

You will save $20 by buying 364 for 7.

Sara's mother has bought 90 lollipops and 105 pencils for goody bags for Sara's birthday. What is the largest number of goody bags that Sara's mother can make so that each goody bag has the same number of lollipops and the same number of pencils?

All lollipops and pencils should be used for the goody bags.

Answers

Answer:

90 because you have one lollipop in each bag and then your will have 15 dollars left

Step-by-step explanation:

Factor −1/2 out of −1/2x+6.

Answers

Answer:

Step-by-step explanation:

socratic.org/questions/how-do-you-factor-1-2-out-of-1-2x-6#630699

The equation is A = - ( 1/2) [ x - 12 ]

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be A

Now , the value of A is A = - ( 1/2 )x + 6

Now , on factorizing the given expression , we get

On taking the common term as - ( 1/2 )

A = - ( 1/2 )x + 6

A = - ( 1/2 ) [x - ( 2 x 6 ) ]

On simplifying the equation , we get

A = - ( 1/2 ) [ x - 12 ]

Therefore , the value of A is A = - ( 1/2 ) [ x - 12 ]

Hence ,The equation is A = - ( 1/2) [ x - 12 ]

To learn more about equations click :

https://brainly.com/question/10413253

#SPJ2

An aeroplane is 528 ft directly above an automobile and starts east at the rate of 20 miles an hour at the same instant the automobile starts east at the rate of 40 miles an hour. How fast are they separating

Answers

Answer: 20 mph

Step-by-step explanation:

Given

The airplane is at a height of 528 ft with a rate of 20 mph

The automobile is also directing east at the rate of 40 mph

at this instant, they are separating by the relative velocity between them

[tex]\Rightarrow v_{rel}=40-20=20\ mph[/tex]

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