Solve for x&y, y=3x-4 & y= 2x + 1



Please show step by step how you got the answer

Answers

Answer 1

Answer:

(5, 11 )

Step-by-step explanation:

Given the 2 equations

y = 3x - 4 → (1)

y = 2x + 1 → (2)

Substitute y = 3x - 4 into (2)

3x - 4 = 2x + 1 ( subtract 2x from both sides )

x - 4 = 1 ( add 4 to both sides )

x = 5

Substitute x = 5 into either of the 2 equationsfor corresponding value of y

Substituting into (2)

y = 2(5) + 1 = 10 + 1 = 11

solution is (5, 11 )

Answer 2

Answer:

This is a system. put the first equation under the second one and subtract. y - y = 0. 2x - 3x = -x. 1 - (-4) = 5. so the result is 0 = -x +5 or x = 5. plug x into either equation and y = 11. the answer is (5, 11).


Related Questions


Brett needed to repair a window that sat 12 feet
high on a house. He has a 15 foot ladder. How far away
must he set the ladder from the base of the house for it
to reach the window exactly?
3 ft
65 ft
© 9 ft D 6 ft

Answers

9 feet

Use Pythagorean theorem:
Leg: 12
Hypotenuse: 15

12^2 + x^2 = 15^2
144 + x^2 = 225
x^2 = 81
x = 9

Solve for x
[tex]\frac{x}{7}[/tex] − [tex]\frac{x}{9}[/tex] =−1

Answers

Answer:

[tex]x = \frac{ - 63}{2} \: or \: - 31.5[/tex]

Step-by-step explanation:

[tex] \frac{x}{7} - \frac{x}{9} = - 1[/tex]

Lets take the L.C.M of 7 & 9.

L.C.M of 7 & 9 = 63

[tex] = > \frac{9x - 7x}{63} = - 1[/tex]

[tex] = > \frac{2x}{ 63} = - 1[/tex]

Now lets multiply 63 on both the sides.

[tex] = > \frac{2x}{ 63} \times 63 = (- 1) \times 63[/tex]

[tex] = > 2x = - 63[/tex]

Now lets divide both the sides by 2.

[tex] = > \frac{2x}{2} = \frac{ - 63}{2} [/tex]

[tex] = > x = \frac{ - 63}{2} = - 31.5[/tex]

PLEASE HELP THIS IS DUE TODAY!!​

Answers

Answer:

254 in

Step-by-step explanation:

1 yard = 36 in

7 yards = 36 (7)

7 yards = 252

add 2

254 in

:)

Answer: 254 inches

Step-by-step explanation:

1 yard= 36 inches x 7 (yards) + 2 inches= 254 inches

If you highlight bob he is a skeleton
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Answers

Answer:

Nice picture of Bob (tho i dont know who he is)

Step-by-step explanation:

AMazing

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Bob is great

Finding which number supports the idea that the rational numbers are dense in the real numbers?

Answers

Answer:

an integer between –11 and –10

a whole number between 1 and 2

a terminating decimal between –3.14 and –3.15

Step-by-step explanation:

Help!! I have exam in 10 minutes

Answers

Answer:

LHS=(1-sin60)/cos60

=(1-√3÷2)/1÷2

=2(1-√3÷2)

=2-√3

RHS=(1-tan30)/(1+tan30)

={1-(1÷√3)}/{1+(1÷√3)}

={(√3-1)/√3}/{(√3+1)/√3}

=(√3-1)/(√3+1)

={(√3-1)(√3-1)}/{(√3+1)(√3-1)}

=(3-√3-√3+1)/(3-1)

=(4-2√3)/2

=2-√3

Brainliest?

Bryce and two of his friends went to eat at Texas Roadhouse. They split the bill evenly between them. Bryce share was $14.85. Write and solve an equation to find the total,t, of the bill .( please help asap and show all your work please)​

Answers

As there are three people in total, the number of total shares is 3.

                Let 1 share = x = $14.85

                               t = 3x

                          t = 3 (14.85)

                            = $44.55

Hope this helps!

On Robert’s shelf are 6 mystery books, 2 science fiction books, 3 adventure books, & 4 history books. Robert will randomly choose 1 book to read, not put it back and then grab another book to read. What is the probability that he chooses an adventure book and then a history book?

Answers

Answer:

2/35

Step-by-step explanation:

total of 15 books

P(Adv,Hist) = 3/15 · 4/14  =  1/5 · 2/7  =  2/35

I bought 500 pieces of candy. If 42% of the candy was eaten. How many pieces

were ate?

Answers

Answer: 210

Step-by-step explanation:

42% is equal to the fraction 42/100.

We can multiply 42/100 by 500 to find how much candy was eaten.

42/100 x 500 = 210.

Therefore, 210 pieces of candy were eaten. Hope this helps and good luck!

Answer:

210

Step-by-step explanation:

500 - 42%= 290

500 - 290 = 210

210 = Answer

can you help me please ​

Answers

Answer:

0.07

Step-by-step explanation:

its gonna be sin 7/10 which is approx. 0.06569 rounded to the nearest tenth is 0.07

Answer:

So judging by the fact that this is a right triangle clearly we know that we have 90 degrees. X is less than this and doesn't seem equal to the top angle area which looks to be 50 or so degrees I believe side x is 30 or 35 degrees. Sorry if I'm wrong! -Your friend, Bill Cipher

Step-by-step explanation: Have a great V-day <3

What is the missing value of 5x-2y=30 (8,)

Answers

Answer:

In this equation, we can start by understanding that "x" has a value of 8, as given in the ordered pair. When multiplied by 5, this leads to "40 - 2y = 30". Next, we can subtract 40 from both sides of the equation. This leads us to a value of "-2y = -10". The next step would be to divide both sides by -2 as a way of isolating "y", which leads us to a final value of "y = 5". The final ordered pair would be (8,5).

What is the area on this?

Answers

Area of the rectangle is length x width =  5 x 10 = 50 sq. cm

Area of the triangle is 1/2 x base x height, base = 17-10 = 7, height = 5

Area = 1/2 x 7 x 5 = 17.5 sq.cm

Total area = 50 + 17.5 = 67.5 sq. cm.

50+ 17.5 = 67.50 is the answer

peter weighs 8kg heavier than Ailen.If 5/7 of Peter weight is 35kg,what is their total weight?​

Answers

5/7 = 35 kg

1/7 = 7 kg

Peter weighs 49 kg

49 - 8 = 41 kg

Ailen weighs 41 kg

49 + 41 = 90kg

Their total weight is 90 kg

Answer:
90 kg
Step-by-step explanation:
P= 8+x
A=x
5/7 of _=35kg= 49- Peter
49-8=41-Alien
49+41= 90kg

In ΔJKL, the measure of ∠L=90°, JL = 60, KJ = 61, and LK = 11. What ratio represents the tangent of ∠J?In ΔFGH, the measure of ∠H=90°, GF = 37, HG = 12, and FH = 35. What ratio represents the sine of ∠F?

Answers

[tex]tan \: j \: = \frac{opp}{adj} [/tex]

[tex]tan \: j \: = \frac{11}{60} [/tex]

[tex]sin \: f = \frac{opp}{hyp} [/tex]

[tex]sin \: f = \frac{12}{37} [/tex]

The label on a 1.25 pound bag of wildflower seeds states that it will cover an area of 280 square feet. Based on this information, what is the number of square feet that 1 pound of wildflower seeds will cover?

Answers

Answer:

1 pound of sunflower seeds will cover about 187 square feet of land

Step-by-step explanation:

To solve this problem, we will have to assume that there is a linear relationship between the net weight of the wildflower seeds and the area of land it can cover when planted.

Based on this assumption, we can find the number of square feet that a 1 pound bag will cover, by setting up a simple relationship as shown below:

if 1.5 pounds covers 280 square feet

1 pound will cover x square feet.

by cross multiplying, we have that

x = (280 X 1) / 1.5 = 186.66 square feet.

Therefore, 1 pound of sunflower seeds will cover about 187 square feet of land

D Find two solutions to the equation 5 y = 8 Complete the statements below.​

Answers

Step-by-step explanation:

(1,5/8), (2,5/4) those are the two solutions

What is the circumference of the following circle?
diameter=9cm

Answers

Answer:

The circumference of the following circle is 9π (around 28.274)

Step-by-step explanation:

The circumference can be found by using the following formula, where d is the diameter of the circle...

dπ = 9π ≈ 28.274

help me please how do i do this

Answers

Answer:

41 degrees

Step-by-step explanation:

In a parallelogram, opposite angles are equal, so:

[tex]3x+11=5x-9\\-2x = -20\\x=10\\\\E = 3x + 11\\E = 3 * 10 + 11\\E = 30 + 11\\E = 41[/tex]

Here are the steps to solving. The answer is in the top right corner.

Solve the system by substitution.
y =
-4x
y = x - 5

Answers

Answer:

x=-1

Step-by-step explanation:

thanks I'm done pls

Answer: 1,-4

Step-by-step explanation: I noticed there are no steps for this one so I will go ahead and put them.

-4x+x=x-5+-x

combine:

-5x/5=-5/-5

x=1

Substitute:

y=-4x(1)

y=-4

so we get 1,-4

We have 6 face red cards (JQK x 2) and 16 black cards, so a total of 22 cards.The red face cards and the black cards numbered 2-9 are put into a bag. Four cardsare drawn at random without replacement. Find the following probabilities:
a) All 4 cards are red
b) 2 cards are red and two cards are black
c) At least one of the red cards is red.
d) All four cards are black

Answers

Answer:

I dont know

Step-by-step explanation:

only doing it for points

I need help with this question

Answers

Answer:

it's 324

Step-by-step explanation:

divide 72 by 4 to get one side, then multiply the side by itself, 18 times 18

PLz help I will give brainliest!!!!! and extra points

Answers

Hey there!

The answer to your question is [tex]95.55[/tex]

Formulas:

Area of semi-circle = [tex]\frac{1}{2}(\pi r^2)[/tex]

Area of rectangle = [tex]lw[/tex]

Area of triangle = [tex]\frac{bh}{2}[/tex]

Now solve:

semi-circle

[tex]\frac{1}{2}\pi3^2[/tex]

[tex]\frac{1}{2}\pi9[/tex]

[tex]4.5\pi[/tex]

(We will use 3.14 as approx. for pi)

[tex]4.5 * 3.14\\23.55[/tex]

rectangle

[tex]10(6)\\60[/tex]

triangle

[tex]\frac{4(6)}{2}[/tex]

[tex]\frac{24}{2} \\12[/tex]

Now add them all together:

[tex]23.55+60+12\\95.55[/tex]

Have a terrificly amazing day!

Tia cut 4-meter 8-cenimeter wire into 10 equal pieces. Martha cut a 540-centimeter wire into 9 equal pieces. How much longer is one of Marta's wires than one of Tia's?

Answers

Answer: 19.2 cm

Step-by-step explanation:

A meter is equal to 100 centimetres so the total length of Tia's wire in centimetres is:

= 4.08 * 100

= 408 cm

She cuts this into 10 equal pieces:

= 408 / 10

= 40.8 cm

Martha cuts her 540 cm wire into 9 pieces. Each piece is:

= 540 / 9

= 60 cm each

The difference is:

= 60 - 40.8

= 19.2 cm

What is the slope of the line l ? (-2,9) (6,1)

Answers

answer: -11/5
explanation: -2-9/6-1 =-11/5

i need someone thats good at math pls help me i dont have the dot plot but i need the mena answer the median sentence and median answer pls

Answers

Answer:

to work out the median you put the numbers in ascending order and then cross one number from the left and right side one at a time until you reach the middle, if you have lots of numbers then add one to the number of items in the data and divide by two.

HELP DUE IN 10 MINS!

Attached is the Question.

Answers

Answer:

∠N ≅ ∠J - givenLN ≅ LJ - given∠L ≅ ∠L - reflexive property

Postulate: ASA

Congruency Statement: ΔJML ≅ ΔNKL

I’m confused on my math someone help
Okay so we’re trying to find out if they are true or false I guess so the first question is HELP MEEE

Answers

Answer:

False, True, True are thr answers

False
2/3*9 is 6 which is not greater than 8

True
-3-1 equals -4 so -4 is less than or equal to -4

True 6*4 is 24 so 48-24 is 24 and 24 is greater than 20

Factoriza el siguiente trinomio 6x^2 – 26x – 200

Answers

Answer:

2 (x + 4)(3x - 25)

Step-by-step explanation:

[tex]6 {x}^{2} - 26x - 200[/tex]

[tex]3 {x}^{2} - 13x - 100[/tex]

[tex]2 (x + 4)(3x - 25)[/tex]

1.3, 0.9, 1.1, 0.7, 0.5, 1.0 The mode is​

Answers

Answer:

The mode is when a specific number occurs more than the others

There is no mode my guy

the numbers that are in the bunch are only occurring once.

Step-by-step explanation:

Find the expression that represents the sum of 2i3+5i2-6i and 2i2-3i+8.

Answers

Dry-by-step explanation:

Kznyuszc kubysadnuailsdaieubvaeryulbvaulybeffn

Ioaer

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