solve the equation by substitution y= 3x +4 y=3x-2​

Answers

Answer 1
3x + 4 = 3x - 2
3x = 3x - 6
0 = -6, false
Answer: no solution

Related Questions

June's mother was 29 when June was 5 years old. How old will June be when she is one-quarter her mother's age?

Answers

Given :

June's mother was 29 when June was 5 years old.

To Find :

How old will June be when she is one-quarter her mother's age.

Solution :

Let, age of June when she is one-quarter her mother's age is x and mother's age is y.

So, y = 4x   ...1)

Also, we know that difference between two person's age is constant.

So, y - x = 29-5

y - x = 24    ...2)

Solving equation 1 and 2, we get :

[tex]4x -x = 24\\\\3x = 24\\\\x = 8[/tex]

y = 32

Therefore, June will be 8 years old when is one-quarter her mother's age.

someone pls help me with this

Answers

Answer:

4.25   wewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewe

Step-by-step explanation:

A restaurant serves custom-made omelets, where guests select meat, cheese, and vegetables to be added to their omelet. There are 6 vegetables available, and guests may select any 2 vegetables for their omelet. How many different combinations of 2 vegetables are possible?
from were get the 5 and 4

Answers

Answer:

15 possible combinations

Step-by-step explanation:

Given

[tex]Vegetables = 6[/tex]

[tex]Selection = 2[/tex]

Required

Determine the possible number of combinations

The question emphasizes on "selection" which means "combination".

So; To answer this question, we apply the following combination formula:

[tex]^nC_r = \frac{n!}{(n-r)r!}[/tex]

In this case:

[tex]n = 6[/tex]

[tex]r = 2[/tex]

The formula becomes:

[tex]^6C_2 = \frac{6!}{(6-2)!2!}[/tex]

[tex]^6C_2 = \frac{6!}{4!2!}[/tex]

[tex]^6C_2 = \frac{6*5*4!}{4!2*1}[/tex]

[tex]^6C_2 = \frac{6*5}{2}[/tex]

[tex]^6C_2 = \frac{30}{2}[/tex]

[tex]^6C_2 = 15[/tex]

Hence, there are 15 possible combinations

pls help asap no trolls!

Answers

Answer:

HI

Step-by-step explanation:

In a triangle, the length size of each side corresponds to the size of the degree of the angle opposite it.

This means, the biggest angle would be opposite the side with the longest length, while the angle with the least degree will be opposite the side that is the smallest.

In ∆HIJ, the least angle measure is <J (54°).

Side length opposite to <J is HI.

Therefore the smallest side of ∆HIJ is HI

Which
graph could represent a car that begins by increasing its speed, then travels at a constant speed, and then
decreases its speed, as time increases?

Answers

Answer:

I believe the answer would be

Step-by-step explanation:

a graph that goes up and then is a straight line then it goes down.

In other words the graph would be A.

Golf balls can be purchased in a 3-pack for $4.95 or a 12-pack for $18.95. Which is the better buy? Which Item cost less per golf ball? By how much?

Answers

I think the better buy would be the 12-pack because the quality of the ball and the brand would determine the price. Golf balls do the same thing, you hit than lose it than buy a whole new pack of balls. The 3-pack cost less because it’s $4.95 and the 12-pack cost $18.95. By $14 much.

geometry help please!

Answers

Answer:

x+16=4x-5

16+5=3x

21=3x

21/3=x

x=7

Find tan theta.
A.16/20
B.12/20
C.16/12
D.12/16

Answers

Answer:

16/12

Step-by-step explanation:

SOHCAHTOA

TOA - tan theta = Opposite/ Adjacent

Tan theta = 16/12

= 16/12

if you were told to find theta, then

tan inverse ( 16/12)

theta will be 53.13 degrees

The tangent of the given right angle triangle is [tex]\frac{16}{12}[/tex].

What is a right angle triangle?

A right angle triangle is a triangle in which one of the three angles is a right angle.

What is the tangent of an angle in a right angle triangle?

"In any right angle triangle, the tangent of an angle is the length of the opposite side (O) divided by the length of the adjacent side (A). In a formula, it is written simply as 'tan'."

Given, Base of the right angle triangle is = 12.

The height of the right angle triangle is = 16.

The hypotenuse of the right angle triangle is = 20.

The angle between the base of the triangle and the hypotenuse is = θ.

Now,  tan θ

[tex]= \frac{Height}{Base}\\= \frac{16}{12}[/tex]

Therefore, tan θ of the given right angle triangle is  [tex]\frac{16}{12}[/tex].

Learn more about the tangent of a right angle triangle here: https://brainly.com/question/3770177

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if i bike travels 15m in 2 sec, what is its speen in km/h?

Answers

Answer:

x=27 km

Step-by-step explanation:

Make an equation 2/.015=3600/x

Multiply 3600 by .015 to get 54

Divide 54 by 2 to get 27.

9514 1404 393

Answer:

  27 km/h

Step-by-step explanation:

(15 m)/(2 s) = (15 m)/(2 s)×(1 km)/(1000 m)×(3600 s)/(1 h)

  = (15×1×3600)/(2×1000×1) km/h = 15×1.8 km/h = 27 km/h

In a class 32 students, 4students we're homesick with the flu on Thursday. what percentage of the students were absent on Thursday​

Answers

Answer:

12.5%

Step-by-step explanation:

4 * 100 / 32 = 12.5

Find the value of x that will make A||B.
A
В
4x
2x
x
[?]

Answers

Answer:

[tex]x = 30^{\circ}[/tex]

Step-by-step explanation:

Given

Parallel lines A and B

Required

Determine the value of x

From the attachment, 2x and 4x are consecutive interior angles and the theorem of consecutive interior angles is that:

[tex]2x + 4x = 180[/tex]

Solving further, we have:

[tex]6x = 180[/tex]

Divide both sides by 6

[tex]\frac{6x}{6} = \frac{180}{6}[/tex]

[tex]x = \frac{180}{6}[/tex]

[tex]x = 30^{\circ}[/tex]

What does the word slope mean?

Answers

slope is like rise/run
slope is what you use when you need to find the steepness of a line on a graph. You find slope by doing y=mx+b

I WILL MAKE YOU BRAINLEST


At a farmer’s market, two vendors sell fresh milk. One vendor sells 2 liters for $3.80, and another vendor sells 1.5 liters for $2.70. Which is the better deal?

Answers

It is the vendor that sells 1.5 L for $2.70

After falling 23 degrees f, the temperature is now 51 degrees f. What was the starting temperature?

Answers

Answer:

74

Step-by-step explanation:

its easy so you add 23 and 51 and you got the answer.

Part C
Write a question or define an attribute of the data that you couldn't answer or see with the original histogram, but can
now answer or see with the new histogram.

Answers

Answer:

This is the sample answer:

The new histogram shows that 7 trucks have a fuel efficiency of 10 to 14 miles per gallon. It’s also possible to see that the shape of the data is skewed right.

Step-by-step explanation:

An electrician collected $1265.23 for a job that included $840 labor, which was not taxed, and the rest for parts, which were taxed at 6%. Determine how much of the total was tax.

Answers

Answer:

Total tax = $25.51

Step-by-step explanation:

Total collection = $1265.23

Tax-Free amount =  $840

so

Taxable amount = $1265.23 -  $840

                            = $425.23

Given that the taxable amount was taxed at 6%

Thus,

The total tax = 6% of 425.23

                     = 6/100 × 425.23

                     = 0.06 × 425.23

                      = $25.51

Therefore,

Total tax = $25.51

Select the correct equations.
Identify all of the linear functions.
2x + 5y = 13
-x2 = 3y + 10
3(2x + y) = 14
y = 13- 2x2
2 = y + x5
y = x + 7

Answers

Answer:

A linear equation is of the form:

y = a*x + b

Where a and b are real numbers, and we only have one term with x, and no powers of x larger than 1.

Let's rearrange all the given options to see if they take this form. I will isolate x for all of them.

a) 2x + 5y = 13

5y = -2*x + 13

y = (-2/5)*x + 13/5

(this is a linear equation)

b) -x^2 = 3y + 10

 -3*y = x^2 + 10

y = (-1/3)*x^2 + 10/3

(this is not a linear equation)

c) 3(2x + y) = 14

 6x + 3y = 14

 3y = 14 - 6x

y = (-6/3)*x + 14/3

(this is a linear equation)

d) y = 13 - 2*x^2

(this is not a linear equation, we have a x^2 there)

e) 2 = y + x^5

-y = x^5 - 2

(this is not a linear equation, we have a x^5 there)

f) y = x + 7

we can rewrite this as:

y = 1*x + 7

(this is a linear equation)

Answer:

i just wanted to say, that I took the test and A and F are correct, but C (the person above me says C is correct) is not correct

Step-by-step explanation:

y = x - 4
y = 4x + 2
x=
y =

Answers

Answer:

(-3/2, -11/2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Equality PropertiesSolving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = x - 4

y = 4x + 2

Step 2: Solve for x

Substitution

Substitute in y:                    x - 4 = 4x + 2Isolate x terms:                   -4 = 4x + 2Isolate x term:                     -6 = 4xIsolate x:                              -3/2 = xRewrite:                               x = -3/2

Step 3: Solve for y

Define equation:                    y = x - 4Substitute in x:                       y = -3/2 - 4Subtract:                                 y = -11/2

Answer by Khan Academy:

x=−2

y=−6

​ Hope This Helped Everyone

Step-by-step explanation:

I am extremely confused. Any help?​

Answers

Answer:

(x-4)(5x³+18x²+54x+215)+860

Step-by-step explanation:

This follows that when the fourth degree polynomial is divided by the monomial(x-4),it gives a third degree polynomial and some remainder r

That is:

5x⁴-2x³-18x²-x/x-4=(ax³+bx²+cx+d)+r

if so,then

5x⁴-2x³-18x²-x=(x-4)(ax³+bx²+cx+d)+r

5x⁴-2x³-18x²-x=ax⁴+bx³+cx²+dx-4ax³-4bx²-4cx-4d+r

5x⁴-2x³-18x²-x=ax⁴+x³(b-4a)+x²(c-4b)+x(d-4c)-4d+r

We can now equate the similar terms thus,the terms with the same power of x on both sides

5x⁴=ax⁴,a=5

Again,

b-4a=-2,but a=5

b-4(5)=-2

b-20=-2

b=18

Again,

c-4b=-18(but b=18)

c-4(18)=-18

c-72=-18

c=54

Again,

d-4c=-1(but c=54)

d-4(54)=-1

d-216=-1

d=215

Finally,

-4d+r=0(but d=215)

-4(215)+r=0

r-860=0

r=860

This means that when 5x⁴-2x³-18x²-x is divided by x-4,it gives5x³+18x²+54x+215 with a remainder of 860

Now rewriting it in the form as required by the question=(x-4)(5x³+18x²+54x+215)+860

Fill in the blank. The centroid is (blank) of the distance from each vertex to the midpoint of the opposite side.

Answers

Step-by-step explanation:

.

The centroid is 2/3 of the opposite side. of the distance from each vertex to the midpoint. 8. To inscribe a circle about a triangle, you use the.

5 pages·2 MB

The complete statement is: the centroid is 2/3 of the distance from each vertex to the midpoint of the opposite side

The properties of a centroid are:

The lines that pass through the centroid of a triangle divides the side lengths of the triangle into equal halves.The centroid is located at a point that is 2/3 from the vertex to the midpoint

The second highlight above means that: the statement is to be completed with 2/3

Read more about centroids at:

https://brainly.com/question/1189196

If adora watched a video that's 21:58 minutes long what time will she have to start watching to finish exactly at 11:59pm

Answers

Answer:

11:37.02 pm

Step-by-step explanation:

11:59 pm - 21:58 minutes = 11:37.02 pm

Quartile represent what percent of data.

A. 35%
B. 50%
C.25%
D.30%

Answers

The answer is 25 percent.

Solve the following system of equations. 4y+3z=-7
12x-3y+z=-7
-6x+2y-2z=12

Answers

Step-by-step explanation:

12x-3y+z=-7 ‖-12x+3y

z=-7-12x+3y

so you can replace z with (-7-12x+3y)

4y+3*(-7-12x+3y)=-7

4y+(-21-36x+9y)=-7

13y-21-36x=-7 ‖+21

13y-36x=14 ‖-13y

-36x=14-13y ‖*(-1)

36x=-14+13y ‖/3

12x=-14/3+13/3y

so-6x=+14/6-13/6y

(+14/6-13/6y)+2y-2*(-7-(-14/3+13/3y)+3y)=12

(+14/6-13/6y)+2y+14-28/3+26/3y-6y=12

(+14/6-13/6y)+2y+14-56/6+52/6y-6y=12

7+2.5y=12 ‖-7

2.5y=5 ‖/2.5

y=2

so

4y+3z=-7

4*2+3z=-7

8+3z=-7 ‖-8

3z=-15 ‖/3

z=-5

12x-3*2+(-5)=-7

12x-6-5=-7

12x-11=-7 ‖+11

12x=4 ‖/12

x=1/3

lest common multiple of 60 and 90

Answers

Answer:

180

Step-by-step explanation:

Which is equivalent to (-2m^2n^3/m^2n^4)^2?

Answers

The last one is the answer

What is 6,618 feet in yards

Answers

Answer:

2,206 yards

Step-by-step explanation:

To find how many yards there are, we can divide by 3.

6618 / 3 = 2206

Best of Luck!

Answer:

6,618 feet is 2,206 yards.

Step-by-step explanation:

using the diagram below, what is the measure of e​

Answers

Answer:

50°

Step-by-step explanation:

Since AB and ED are parallel and AE is the transversal, angle A and E are congruent

So m∠E = m∠A = 50°

The value of angle E is 50.

What is an angle?

An angle is a combination of two rays (half-lines) with a common endpoint.

Given:

ΔCAB ~Δ CED

AB || CD

As, ΔCAB ~Δ CED

So, the corresponding angle is equal.

<A = <E

<B= <D

So, <A= <E =50. (given)

Hence, the m<E =50.

Learn more about angle here:

https://brainly.com/question/13954458

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What is 3/8 as a decimal representation and as a percent representation

Answers

Answer:

0.375 and 37.5%

Step-by-step explanation:

3/8 = 0.375

0.375*100=37.5%

who wants brainlest?

what is 5 thousand + 1 ?
(very hard)

who is the most popular gamer on yt
(pls sub to him)

do you like roblx or mincraft or both

bonus question:
(five stars)
witch is better
mincraft or roblx
(your opinion)

if you want to compete in the next brainlest competition, friend me, or follow my questions, to keep yourself updated............

:)

Answers

Answer:

5001

PewDiePie

both!!

rblx, since there r similar games like mincraft in it lol

Answer:I want brainlest,5001 SUPA HARD pewdiepie (i subed)

I prefer minecraft i like both

Step-by-step explanation:

Not sure if thats what u wanted lol :D

can some one plz help me with this sienice qustion (will give brainlest)

Answers

Answer:

A

Step-by-step explanation:

the person above is correct! :)
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