help plssss i give brainliest

Help Plssss I Give Brainliest

Answers

Answer 1

Answer:

(7, - 2 )

Step-by-step explanation:

Given the 2 equations

x = - 3y + 1 → (1)

- 3x - 3y = - 15 → (2)

Substitute x = - 3y + 1 into (2)

- 3(- 3y + 1) - 3y = - 15 ← distribute and simplify left side

9y - 3 - 3y = - 15

6y - 3 = - 15 ( add 3 to both sides )

6y = - 12 ( divide both sides by 6 )

y = - 2

Substitute y = - 2 into (1) for corresponding value of x

x = - 3(- 2) + 1 = 6 + 1 = 7

solution is (7, - 2 )


Related Questions

can somebody please try to break down how to solve systems of equations by substitution as much as possible? i've used so many apps but i still can't get a grasp of it. please!!! 20 points. please don't answer just for the points!!!

Answers

Answer:

okay, so let's take an example problem:

y = x + 4 where "y" = 5

so first, you plug in 5 in "y"'s place like so:

5 = x + 4

then, you solve for "x"

5 - 4 = 1

so therfore:

x = 1

if you need more of an explanation please do not be afraid to reach out. my goal isn't to get points, it's to help.

x+10> 20 or x+12< 3. Help please!!!

Answers

Answer:

x < -9 or x > 10.

Step-by-step explanation:

x + 10 > 20

x  > 10.

x + 12 < 3

x < -9.

hakim wrote an equation to represent the number of meters he would run for each kilometer, k, in a long distance race.W hat is the value of k if 1,000k =0?​

Answers

k=500 because of the kilometer

At Jefferson Middle School, eighty-two students were asked which sports they plan to participate in for the coming year. Twenty students plan to participate in track and cross country; six students in cross country and basketball; and eight students in track and basketball. Twelve students plan to participate in all three sports. A total of thirty students plan to participate in basketball, and a total of forty students plan to participate in cross country. Ten students don't plan to participate in any of the three sports.

How many students plan to just participate in track?

Answers

Answer:

20

Step-by-step explanation:

PLEASE HELP ME ANYONE

Answers

i believe it’s (0,4) since it’s asking for vertex.

Rewrite the equation 2x + 3y = 6 in slope-intercept form.
3y = -2x + 6
y= -2x+6
y= - 2/3 x+2
y = 2x+6

Answers

2x+3y=6
3y=6-2x
y=2-2/3x
y=-2/3x+2
the 3rd one is correct

PLEASE HELP!!
Find AC

Answers

tan = opposite/adjacent

tan 30° = AC/25

25 tan 30° = AC

AC = 25 tan 30°

AC = 14.43375...

AC = 14.4 cm (nearest tenths)


Hope this helps!

Now practice solving some problems.


Find the solution of y = –3x – 1 for x = –5.


A.
(–5, –16)


B.
(–16, –5)


C.
(–5, 14)


D.
(14, –5)

Answers

Answer:

The answer is C. (-5, 14)

1 and 1/3 - 5/6
(ill mark when 2 answers)
(have a good day )
(HELP MEH PLZZ)

Answers

Answer:

1 1/3 - 5/6 = 1/2

Step-by-step explanation:

First we will need to make a common denominator on both sides, so since we have the second side divided in six, we can do the same to the first side as shown;

1/3 = 2/6

now this will help us a lot, now all we have to do is take what we can out of the fraction (2/6) out of the first side so it is equal to 0, NOTE this is not a professional way to do it but it helps me a lot;

5/6 - 2/6 = 3/6

this makes it easy all of a sudden, cause now its in a simpler form, we can tell this because we know that 3/6 is equal to 1/2, so now all we have to do is take 1/2 from our 1 that we are left over with, and VWOLA;

1 - 1/2 = 1/2

GRAND TOTAL;

1 1/3 - 5/6 = 1/2

(note: the space between the 1 and the 1/3 indicates that they are two separate numbers, so you dont have to put the 'and' there)

What unit should be used to calculating fundraising for field trip

Answers

Answer:

the mcps i think

Step-by-step explanation:

Im not sure :/

Sandy has 10 roses, 2 daisies, and 8 tulips. She wants to arrange all the flowers in bouquets. Each bouquet has the same number of flowers and the same type of flower. What is the greatest number of flowers that could be in a bouquet?

Answers

Answer: The greatest number of flowers that could be in a bouquet = 2

Step-by-step explanation:

Given: Sandy has 10 roses, 2 daisies, and 8 tulips.

Each bouquet has the same number of flowers and the same type of flower.

The greatest number of flowers that could be in a bouquet = GCD (10,2,8)

Since 10=2 x 5, 8 = 2 x 2 x 2

GCD (10,2,8) =2

Then, The greatest number of flowers that could be in a bouquet = 2

Enter an equation in the form y = mx + b that represents the function

Answers

Answer: no answer c

Step-by-step explanation:

PLSSSSSSS HELP ME CORRECT ANSWER

Answers

Answer:

8 units

Step-by-step explanation:

The formula for the area of a parallelogram is base * height = area. You have that the height = 5 and the area = 40, so that means base * 5 = 40.

If base * 5 = 40, you know that base = 8. You can also solve this like an equation:

b * 5 = 40

divide both sides by 5

b = 40/5 = 8 units

Answer: 8 units

uwu ur mom i hate flagotgs fr THAT IS A JOKE NO I DONT PLWAASE IMSS EORRY

PLZ HELP ME WILL GIVE BRAINLIEST. THANKYOU!!

Answers

Answer:

x = -4

y = -1

Step-by-step explanation:

-2x - 9 = -5x - 21

3x - 9 = -21

3x = -12

x = -4

y = -2(-4) - 9

y = 8 - 9

y = -1

Answer:

x=−4 and y=−1

Step-by-step explanation:

I will solve your system by substitution.

y=−2x−9;y=−5x−21

Step: Solve y=−2x−9for y:

Step: Substitute−2x−9foryiny=−5x−21:

y=−5x−21

−2x−9=−5x−21

−2x−9+5x=−5x−21+5x(Add 5x to both sides)

3x−9=−21

3x−9+9=−21+9(Add 9 to both sides)

3x=−12

(Divide both sides by 3)

x=−4

Step: Substitute−4forxiny=−2x−9:

y=−2x−9

y=(−2)(−4)−9

y=−1(Simplify both sides of the equation)

Answer:

x=−4 and y=−1

What is the volume of this rectangular prism?

1/4 cm,
1/2 cm,
1/3 cm

Reduce the fraction to its simplest terms.

Answers

What rectangular prims, what do you mean?!?

(3a+2.5b)^2=9a^2+6.25b^2+*
Please help before Thursday

Answers

Step-by-step explanation:

We have (x + y)² = (x + y)(x + y) = x² + 2xy + y².

Let x be 3a and y be 2.5b.

Therefore (3a + 2.5b)²

= (3a)² + 2(3a)(2.5b) + (2.5b)²

= 9a² + 15ab + 6.25b².

Hence the '*' sign should be replaced with 15ab.

Answer:

Given that, ( 3a + 2.5b )² = 9a² + 6.25b² + *

We know that, ( x + y )² = x² + y² + 2xy

According to the above problem, we get

( 3a + 2.5b )² = (3a)² + (2.5b)² + (2×3a×2.5b)

( 3a + 2.5b )² = 9a² + 6.25b² + 15ab

Therefore,

The sign " * " should be 15ab.

15ab is the right answer.

I need help with the picture. please

Answers

you have to use the order of operations (PEMDAS)

x=3

7+5(3)

MULTIPLACTION FIRST

7+15= 22

so the first was wrong because she added before multiplying

x= 4/5

7+5(4/5)

MULTIPLICATION FIRST

7+4= 11

the second was wrong because she added before multiplying again

pleaseeee help i need to turn thiis in and i have no idea what it is!!

Answers

Answer: You will need 250 boxes of popcorn to meet your $300 goal.

Step-by-step explanation:

Answer:

5 boxes of popcorn makes 300 usd

Step-by-step explanation:

help its pre-pre

a triangle has two angles that measure 18.6 degrees and 113.4 degrees respectively. what is the measure of the third angle?

Answers

Sum of all angles of a triangle = 180°

Let the third angle be x.

So, 18.6° + 113.4° + x = 180°

=> 132° + x = 180°

=> x = 180° - 132°

=> x = 48°

So, the third angle is 48°.

3rd Δ = 48°

Step-by-step explanation:

sum of all Δangle of a triangle = 180°so, let 3rd angle be x18.6° + 113.4° + x = 180°132° + x = 180°x = 180° - 132°x = 48°

MARK ME AS BRAINLIST

-5, -5.2,5.5,-51/2,-5/2
Least to greatest

Answers

Answer:

-5 1/2,      -5.2,  -5,    -5/2,    5.5

Step-by-step explanation:

Leo's bank balances at the end of months 1, 2, and 3 are $1,700.00, $1,734.00, and $1,768.68, respectively. The balances form a geometric sequence. What will Leo's balance be after 8 months? Leo's bank balance will be $ after 8 months.​

Answers

Answer:

i think it$1,991.82. this is what i got.

Step-by-step explanation:

Amy buys 8 sandwiches and 12 waters.her total cost is 8s+12 how much did she pay. S=sandwiches

Answers

Answer:

8s + 12

s=12-8

s=4

or

8s +12

s=12+8

s=20

Step-by-step explanation:

im not sure kung minus o plus kasi kung kinus mababa lang binayad nya

S=12-8=4 hope this helps :)

In comparing the two written forms of a sequence, which is easier to find a50, the explicit form or the recursive form?

Answers

Answer:

Explicit

Step-by-step explanation:

Given

[tex]Term: a_{50[/tex]

Required

Explicit or Recursive; which is easier

The explicit form is easier.

Take for instance, the explicit form of the sequence is:

[tex]a_n = 2n + 1[/tex]

And the recursive form is:

[tex]a_n = a_{n-1} + 2[/tex]

To find [tex]a_{50}[/tex] in [tex]a_n = 2n + 1[/tex]

You simply substitute 50 for n and then solve for [tex]a_n[/tex]

Which gives:

[tex]a_{50} = 2*50 + 1 = 101[/tex]

The case is different in: [tex]a_n = a_{n-1} + 2[/tex]

First, you substitute 50 for n

[tex]a_{50} = a_{50-1} + 2[/tex]

[tex]a_{50} = a_{49} + 2[/tex]

Next, you need to calculate a49.

This action continues until you get to a1

Then you evaluate the corresponding expressions from a1 to a49 before you get a50.

Hence, the explicit form is easier.

Who tryna help me with my work? 10th Grade work btw.....

Answers

Answer:

Thanks for the points- but im a duma$s

Step-by-step explanation:

9^6 * 9^3 =


Give the answer in exponent form

Answers

Step-by-step explanation:

1,983593e11

Answer:

9^18

Step-by-step explanation:

Since the bases are the same digit, all you have to do is multiply the exponents to get your answer

What is the domain of the function y = 2e graphed below?

Answers

Answer:

All Real Numbers

General Formulas and Concepts:

Algebra I

Interval NotationDomain is the set of x-values that can be inputted into function f(x)

Step-by-step explanation:

According to the graph and function y = 2eˣ, we see that our x-values span from negative infinity to positive infinity. We also see that we can plug in any number x into our function:

(-∞, ∞)

or

All Real Numbers

Answer: D) all real numbers

Step-by-step explanation:

At her restaurant, Yolanda opened 34 cans of tomato sauce. She needs to use 4 cans of sauce for one pan of lasagna. How many pans of lasagna could Yolanda make if she uses all of the cans? Write the answer as a mixed number.

Answers

she could make 8 and a half pans of lasagna

Step-by-step explanation:

so divide 34 and 4 you will get 17 / 2 so to make it into a mixed number divide it by 8 and it will 16 so 1 will be remaining so it will be 8 1/2 hope it helps :D

Mark has $500 in his savings account. If he saves $25 each month, how many months will it take him to have $1000.

Answers

Answer: 20, I believe

Step-by-step explanation: You already have 500 which is half of 1000. 500 divided by 25 equals 20.

Hurry please will mark brainliest!!!!!

Answers

Answer:

C

Step-by-step explanation:

brianliest :3

The answer is C (rotation 90° clockwise)

in this triangle, what is the value of x? Enter your answer, rounded to the nearest tenth, in the box. x = A right triangle with one leg labeled 66 millimeters and the hypotenuse labeled 79 millimeters. The angle that is opposite the 66 millimeter side is labeled x degrees.

Answers

Answer:

56.7°

Step-by-step explanation:

We solve this above question using the Trigonometric function of Sine

sin x = Opposite side/Hypotenuse

Opposite = 66mm

Hypotenuse = 79 mm

sin x = 66/79

x =arc sin(66/79)

x = arcsin(0.8354430379746836)

x = 56.661998553°

Approximately = 56.7°

Answer:

In this triangle, what is the value of x?

Enter your answer, rounded to the nearest tenth, in the box.

x = 56.7

Step-by-step explanation:

Other Questions
For research purposes what are you thoughts on this man? Calculate for Area. 5 cm The blood pressure at your heart is approximately 100 mm Hg. As blood is pumped from the left ventricle of your heart, it flows through the aorta, a single large vessel with a diameter of about 2.5 cm. The speed of blood flow in the aorta is about 60 cm/s. Any change in pressure as blood flows in the aorta is due to the change in height: the vessel is large enough that viscous drag is not a major factor into successively smaller and smaller blood vessels until it reaches the capillaries. Blood flows in the capillaries at the much lower speed of approximately 0.7 mm/s. The diameter of capillaries and other small blood vessels is so small that viscous drag is a major factor..Because the flow speed in your capillaries is much less than in the aorta, the total cross-section area of the capillaries considered together must be much larger than that of the aorta. Given the flow speeds noted, the total area of the capillaries considered together is equivalent to the cross-section area of a single vessel of approximately what diameter?a. 25 cm b. 50 cm c. 75 cm d. 100 cm Which verb form correctly completes this sentence?Nosotros _________ pollo con ensalada todos los fines de semana.A. cocinamosB. cocinoC. cocinanD. cocinas HELP PLEASE!! Aspen Needs Help How does the author's use of dialogue in "Veronica's Brother" contribute to the meaning?AThe use of dialogue reveals more about Edward's character than could berevealed in Veronica's thoughts about Edward.BThe use of dialogue allows Veronica to explain to Edward that she wasglad she was finally getting to know him.The use of dialogue shows that Veronica and Edward spend a significantamount of time talking to one another.D The use of dialogue shows that Veronica spends more time talking toEdward than listening to what he has to say. How did the importation of African slaves impact the development of Latin America? Expand: f(x)= x^4- x^3+x^2+x- Read the sentence. It is missing punctuation.Next weekend provided that it does not rain we will have a picnic at the park.What version of the sentence uses punctuation correctly?Next weekend provided that it does not rain, we will have a picnic at the park.Next weekend, provided that it does not rain we will have a picnic at the park.Next weekend, provided that, it does not rain we will have a picnic at the park.Next weekend, provided that it does not rain, we will have a picnic at the park. What were the shortcomings of industrial capitalism in the 19th century? answer choices1475712333 evremizde hayvan barnaklar var m bu barnaklarn kurulma amac nedir Please help:))))) AsAP Find the percent change from the first value to the second.40;72 (show how you got your answer for a brainliest) Which postulate or theorem proves that triangle JHG andtriangle EFG are congruent? HL Congruence Theorem ASA Congruence PostulateSAS Congruence Postulate AAS Congruence Theorem Ratios during and emergency A. Do not need to be maintained B. Must be maintained C. Dont not need to be maintained if there are no infants in careD. Only have to maintained if there is an evacuation Triangle ABCis rotated 90 clockwise around the origin to gettriangle A'B'C. Find the length of the line segment, AC A. 2.23OB. 4.47O c. 2.44D.2 Which of the followers scatter plots could have a trend line with an equation of 2x+5 !!!!PLEASE ANSWER ASAP!!!!BRAINLIST FOR CORRECT ANSWER Which statement is correct about habeas corpus during the Civil War? a. Habeas corpus was an important right protected throughout the war in the North. b. Both the Union and the Confederacy suspended habeas corpus in some places. c. The South used habeas corpus to justify forced enlistment in the army. d. Habeas corpus was suspended throughout the northern states after disruptions. Will be marked brainliest for answering this simple question