Solving systems of equations using substitution x=3y+10. x=y+2

Answers

Answer 1

Answer:

x=-2, y=-4. (-2, -4).

Step-by-step explanation:

x=3y+10

x=y+2

----------

3y+10=y+2

3y-y=2-10

2y=-8

y=-8/2

y=-4

x=-4+2=-2


Related Questions

please help me answer this math problem

Answers

Answer:

The answer is AAS.

Step-by-step explanation:

Since you have 2 angles that are the same and 1 side which are the same or congruent.

A = E

and C=C they are vertical angles so they are the same

And the AB and ED  side are also same.

ishdkshdjdicbekjednejjdjxjxj w d f

Answers

Answer: x=73 y=73 z=107

Step-by-step explanation:

The angel of x is 73° because opposite angles are always the same.

The angle of y is also 73° because it is on a parallel line so angles on a parallel line would be the same.

Then the angle of z is 107° because the other side of z would be 73° so you need to deduct this from 180° (because a straight line always adds up to 180°).

f(x)=2*+3

What is the value of f(-2)

Answers

Answer:

3 1/4

Step-by-step explanation:

Answer:

f(-2)=7

Step-by-step explanation:

f(-2)=2^-2+3

f(-2)=4+3

f(-2)=7

5x + 6 = 5x - 4 does it have an unique solution

Answers

Answer:

No, it does not.

Step-by-step explanation:

As if we attempted to solve for x, 5x & 5x will both cross each other out. There are no values of x that make the equation true.

Pranav ate pizza for dinner on Monday night and had 2/3 of the pizza left over. On Tuesday night, he ate 1/2 of what was left. How much pizza did Pranav eat on Tuesday?

Answers

Answer: 1/3

Step-by-step explanation:

From the question, we are informed that Pranav ate pizza for dinner on Monday night and had 2/3 of the pizza left over. We are further told that on Tuesday night, he ate 1/2 of what was left.

The amount of pizza that Pranav ate on Tuesday will be:

= 1/2 × 2/3

= 1/3

She ate 1/3 on Tuesday

Medical Marijuana 2015 Sales Tax: The data show the amount of sales tax pald in a county in Colorado. Find the first and third
quartiles for the data.
Month
Sales Tax
Month
Sales Tax
January
363,296
July
518,704
554,227
February
358,567
August
March
418,559
September
506,314
April
266,428
October
341,543
May
399,650
November
349,257
June
453,134
December
532,331
Send data to Excel
Part: 0/2
Part 1 of 2
First quartile Q, is

Answers

Answer:

hippocampus

Step-by-step explanation:

you can see the attached file is scanned image in PDF format is unavailable right now because this video is not available for remote playback is unavailable right now because this was not a lot to get to know what to get a good day I would

HELP ME ANSWER THIS PLEASEE!

Answers

Answer:

no solution

Step-by-step explanation:

Answer:

wala po akong alamwrbdjdbee

find the equation of a line that is parallel to the straight line 2x-y=-3 and crosses the x-axis at x=-5​

Answers

Answer:

y=2x+10

Step-by-step explanation:

In line equations its helpful to write your line in the form y = ax + b. This helps because a is always the gadient of the line and b is always the y intercept.

In this case it is y=2x+3

All parallel lines have the same gradient. The gradient of this line = 2.

If the line crosses the x axis at x=-5, then when x =-5 y = 0.

If you put all this in the form y =ax + b you get 0 = 2(-5) +b

So all you need to do to find b is rearrange. b = 10.

Therefore your line has gradient 2 and y intercept 10.

y = 2x + 10

Use the additive identity property to arrive at 6x=48.

Answers

8

→ 6x = 48

→ x = 48/6

→ x = 8

HOPE THIS HELPS YOU

Follw me = 10 thanks

Mark as brainliest = 10 thanks

1 thanks to me = 2 thanks

Calculate the size of angle x.
Give your answer to 1 decimal place.
8 cm
11 cm
15 cm

Answers

Answer:

45.6° (1 d.p)

Step-by-step explanation:

Using the cosine rule;

c = √( a² + b² - 2ab Cosx)

11 =√(8² + 15² - 2 (8) (15) Cosx)

11² = 8² + 15² - 240 Cosx

11² - 8² - 15² = - 240 Cosx

-168 = -240 cosx

cosx = 0.7

x = cos⁻¹ (0.7) = 45.57 ≈ 45.6°

Answer:

45.6

Step-by-step explanation:

What is the variable number in the equation 6=4+2s

Answers

Answer:

I believe it is 2s

Step-by-step explanation:

a variable is a symbol which functions as a placeholder, so in this case, the placeholder is "s"

Are these lines perpendicular or parallel?
y=-3/2 x+2 and 3x+2y=8

Answers

Answer: there parallel

helppp pleaseeeeeeeeee

Answers

Answer:

hope this helps.............

PLS IT FOR MY ECONOMICS CLASS

Answers

Answer:

7. Hourly wage: 10 hr 2, 20 : 4, 40: 6, 60: 8, 80: 10, 100: 12, 120: 14, 140: 16, 160: 18, 180: 20, 200It should just be a negative slope

Need help ASAP Geometry

Answers

Answer:

Step-by-step explanation:

5x-1 is twice the bisector angle 4x-17 so

5x-1=2(4x-17)

5x-1=8x-34

-3x=-33

x=11, abc=5x-1

5(11)-1=54

f(x) =
4/x²+1
Asymptotes

Answers

Answer:

vertical asymptotes at

x

=

±

1

horizontal asymptote at

y

=

0

Step-by-step explanation:

The denominator of f(x) cannot be zero as this would make f(x) undefined. Equating the denominator to zero and solving gives the values that x cannot be and if the numerator is non-zero for these values then they are vertical asymptotes.

solve:

x

2

1

=

0

x

2

=

1

x

=

±

1

x

=

1

and

x

=

1

are the asymptotes

Horizontal asymptotes occur as

lim

x

±

,

f

(

x

)

c

(a constant)

divide terms on numerator/denominator by the highest power of x, that is

x

2

f

(

x

)

=

4

x

x

2

x

2

x

2

1

x

2

=

4

x

1

1

x

2

as

x

±

,

f

(

x

)

0

1

0

y

=

0

is the asymptote

Oblique asymptotes occur when the degree of the numerator > degree of the denominator. This is not the case here (numerator-degree 1 , denominator-degree 2) Hence there are no oblique asymptotes.

graph{(4x)/(x^2-1) [-10, 10, -5, 5]}

The perimeter of the triangle is 9.2 cm. Write an equation and find the missing side.

Answers

Answer:

9.2-(1.8+3.6)=s

s=3.8

Step-by-step explanation:

9.2-5.4=s

3.8=s

s=3.8

Hope this helps! :)

if a cost for a dinner is 459 and the family wants to leave a 20% tip, with the sales tax of 7% also, what is the total cost?

Answers

Answer:

$589.33

Step-by-step explanation:

Amelia bought a violin that was on sale for 15% off. If the original price was
$220 what is the sale price? *
O $15
O $33
O $187
O $253

Answers

It’s 187 because 220-15%=187 gbbnbvvhjnn

omggggggggg please please help meeeeeeeeee

Answers

Answer:

9

Step-by-step explanation:

9-7= 2

2<3

Answer: B

x < 10

Step-by-step explanation:

X - 7 < 3

X < 3 + 7

X < 10

the line with a slope of 1/3 and a y- intercept of - 15 intersects the line passing through which of these pairs of points?

Answers

Answer:

Options (C), (D) and (E)

Step-by-step explanation:

Slope of the given line = [tex]\frac{1}{3}[/tex]

Any line having same slope will be parallel to the given line otherwise the lines will intersect.

Therefore, we will find the slope of the lines passing through two points given in the options.

Option A

Slope of the line passing through (12, -13) and (15, -12)

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

   = [tex]\frac{-13+12}{12-15}[/tex]

   = [tex]\frac{1}{3}[/tex]

Therefore, both the lines are parallel having no point of intersection.

Option B

Slope = [tex]\frac{-9+7}{18-24}[/tex]

          = [tex]\frac{1}{3}[/tex]

Both the lines are parallel having no point of intersection.

Option C

Slope = [tex]\frac{-20+21}{15-18}[/tex]

          = [tex]-\frac{1}{3}[/tex]

Therefore, both the lines will intersect.

Option D

Slope = [tex]\frac{-15+14}{30-36}[/tex]

          = [tex]\frac{1}{6}[/tex]

Both the lines will intersect each other.

Option E

Slope = [tex]\frac{-11+10}{24-30}[/tex]

          = [tex]\frac{1}{6}[/tex]

Both the lines will intersect each other at a point.

Options (C), (D) and (E) are the correct options.

3 less than the product of 4 and n what is the answer
A. 3 - 4n
B. 4n - 3
C. 3n - 4
D. 4n + 3

HELP QUICK

Answers

4n-3
product is multiplication so 4n would be the first part and then you take 3 away from it

PLSSSSSSSS HELP ME
correct answer gets brainliest

Answers

Answer:

5

Step-by-step explanation:

the area of a parallelogram is represented in this formula:

[tex]A=bh[/tex]

we can rearrange this to solve for [tex]b[/tex]

[tex]\frac{A}{h} =b[/tex]

[tex]\frac{20}{4} =5[/tex]

Therefore [tex]b=5[/tex]

which is the simplified form of the expression 3(7/5x+4) - 2(3/2 - 5/4x)?
A. -39/5x - 11/2
B. 67/10x + 9
C. 3/10x + 5/2
D. 15 + 76/10x

Answers

Answer:

B. [tex]\frac{67}{10} x + 9[/tex]

Step-by-step explanation:

Simplify the expression. Remember to go by the order of operations, or PEMDAS.

1) First, distribute the numbers outside of the set of parentheses to the terms inside the set of parentheses next to them. Then, simplify the fractions.

[tex]3(\frac{7}{5} x + 4) -2 (\frac{3}{2} -\frac{5}{4} x)[/tex]

[tex]\frac{21}{5}x + 12 - \frac{6}{2} + \frac{10}{4} x[/tex]

[tex]\frac{21}{5} x + 12 - 3 + \frac{10}{4} x[/tex]

2) Finally, combine like terms. (This means to add or subtract constants and to add or subtract terms with the same variables.) You may need to convert terms to the same denominator in order to do so easier. Then, reduce the fraction.

[tex]\frac{21}{5} x + 9 + \frac{10}{4}x \\\frac{84}{20}x + \frac{50}{20}x + 9 \\\frac{134}{20}x + 9 \\\frac{67}{10}x + 9[/tex]

Thus, the answer is [tex]\frac{67}{10} x + 9[/tex].

Answer:

B. 67/10x + 9

Step-by-step explanation:

PLS PLS PLS HELPPP please...

Answers

Answer: x=12

Step-by-step explanation: 10(x−3)=90

(10)(x)+(10)(−3)=90 (Distribute)

10x+−30=90

10x−30=90

Step 2: Add 30 to both sides.

10x−30+30=90+30

10x=120

Step 3: Divide both sides by 10.

x=12

3. Given the statement "x - 4 is a factor of f(x)= 5x* – 22x - 2x2 – 25x +4". explain how to verify the
statement is accurate.

Answers

Step-by-step explanation:

x - 4 = 0

=> x = 4

f(x)= 5x – 22x - 2x² – 25x +4

By remainder theorem,

f(4)= 5(4) – 22(4) - 2(4)² – 25(4) + 4

    = 20 - 88 - 32 - 100 + 4 ≠ 0

Since the remainder is not 0, x - 4 is not a factor.

Hope it helps :)

Please mark my answer as the brainliest

The poster that lists the classroom rules in Mrs. Akin’s classroom has a length of 23 yard and a width of 34 yard. image aa2b159187a4443a9dd36a9dfe9e29b8 What is the area of the poster

Answers

Answer:782

Step-by-step explanation: area equals length x width so your length is 23 and your width is 34 so you have to do 23x34

Answer:

2/3

Step-by-step explanation:

because i said so

Find the measure of JML

Answers

Answer:

3x+54°=180°[ by linear pair angle]

3x=180°-54

3x=126

x=126/3

x=42

jlm=3x

jLm=3×42=126°


Ifx += 5, find the value of x?

Answers

didn't undrestood the question

Answer:

if x + 0 = 5, the value of x is 5.

Step-by-step explanation:

we discard 0 since it is of no value in the equation. thus, x = 5. i'm not sure if the one next to the plus sign is 0, since there's nothing there, but we'll assume it's 0. however, if it turns out to be another number, just transpose the other number next to 5 (it would be negative), and subtract. that will be your x.

-2(-5x - 10) + 30 = -110

Answers

Answer: X= -6

Hope it helps

Answer:

your answer will be x=−16

Step-by-step explanation:

Simplify −2(−5x−10)+30

10x+50=−110

10x=−160

Divide each term by 10

and simplify.

x=−16

I hope this helps ^_^

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