Solve by substitution.

x=y+2
x-2y=-1

I'll give Brainliest to the first person
Please explain step by step.

Answers

Answer 1

y=3
x=5

Since x=y+2 you can put it in the second equation

(y+2)-2y=-1
If you solve this then

y=3

You can put this in for y in the first equation

x=3+2

So
x=5

Hope this helps!!
Answer 2
We first choose the equation 1 as the formula,then you use equation 2 to be solve.I’ll send a picture for you to understand .Sorry if you see a bracket in y+2 I cancelled for no confusion
Solve By Substitution.x=y+2x-2y=-1I'll Give Brainliest To The First PersonPlease Explain Step By Step.

Related Questions

whats is the answer to the problem

Answers

its D, they go down the y axis 5, and go right on the x axis 4

2. Find the slope of a line that passes through (-2,-3) and (1.1). 01 101​

Answers

☆Answer : (X1, Y1) = (-2, -3) (X2, Y2) = (1, 1)

m = (Y2 - Y1)/(X2 - X1)

m = (1 - (-3))/(1 - (-2))

m = (1 + 3)/(1 + 2)

m = 4/3 <==> 1

Write the largest three-digit numeral possible using the digits 5, 8, and 4.​

Answers

854 it’s the only one I can think of

please help me asapppppp

Answers

Answer:

make me brainlest I'll answer that, I'm Bright in math

You sit in the bleachers at a concert. The angle of depression from your horizontal sight to the stage is 24 degrees. If your seat is 45 feet above the stage level what is your actual distance d from the stage

Answers

Answer:

x=111ft

Step-by-step

sin 24 = 45/x

+ the parallel lines

45 +x+24

x= 45/sin 24

The actual distance of your from the stage is 111 feet.

What is angle of depression?

The angle formed by the line of sight and the horizontal plane for an object below the horizontal is called angle of depression.

What is sine of an angle?

The sine (sin) of an acute angle in a right angled triangle is the ratio between the side opposite the angle and the hypotenuse of the triangle.

According to the given question

We have

Angle of depression = 24degrees.

Let d be the actual distance of your from the stage.

Now in right angle triangle ABC

We have

AC = 45 feet

And, ∠ABC = 24 degrees

Now the Sine of an angle ∠ABC is given by

[tex]sin24 = \frac{AC}{AB}[/tex]

⇒[tex]sin24=\frac{45}{d}[/tex]

⇒ [tex]0.406=\frac{45}{d}[/tex]

⇒ [tex]d =\frac{45}{0.406}[/tex]

⇒[tex]d = 110.64 feet[/tex] or [tex]111feet[/tex]

Hence, the actual distance of your from the stage is 111 feet.

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What is the intercepts of the line?

Answers

Answer:

The y-intercept is 2.5

The x-intercept is 3.5

Step-by-step explanation:

Hope this helps!

A restaurant decreased their prices for a day to their prices from 1964. A pizza that usually sells for $15.40 was marked
down 85%. What was the price of the pizza in 1964?

Answers

15.40 x .85= 13.09
15.40-13.09= 2.31
Price of pizza in 1964 was $2.31

At Target, a regular size of oreos (17 oz) is $3.79.
At Jewel, a regular size of oreos (17 oz) is 2.99
Find cost per oz. Be sure to show your work!!!

Answers

Target: 0.222941176 Per Oz

Jewel: 0.175882353 Per Oz

Assuming your teacher isn't a maniac she's going to round to the nearest cent. In this case, Target charges (about) 22 cents per Oz. Jewel charges (about) 18 Cents per Oz. This is 0.22 Dollars and 0.18 Dollars if she wants it in dollars and not cents.

What is the solution to the system of equations?

y=0.7x−2
2x+y=25


(15, 8.5)

(10, 5)

(3, 0.1)

Answers

Answer:

b num i think only not sure

Solution to the system of equation y = 0.7x − 2 and 2x + y = 25 is (- 27, - 9).

What is a linear equation?

A linear equation is an algebraic equation of degree one. In general, the variable or the variables(in the case of a linear equation in two variables) the variables are x and y.

Given are two equations y = 0.7x − 2 and 2x + y = 25.

Now let us write these equations in a similar manner.

y = 0.7x − 2 ⇒ - 0.7x + y = - 2...(i)

2x + y = 25...(ii)

Now subtracting eqn(i) from eqn(ii) to cancel out the term y we get

2.7x = - 27.

x = - 10 and substituting the value of x in any one of the equations we get

y = 0.7(-10) - 2.

y = - 7 - 2.

y = - 9.

So, one of the solutions to the system of equations is (- 27, - 9).

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This symbol stands for what mathematical
statement?

Answers

Answer:

I think it stands for congruence if your talking about logics and proofs but if your in the case of conjunctions and disjunctions then it would mean negating something.

Step-by-step explanation:

14.
Write an equation in point-slope form for the line through the given point with the given slope.
(–3, –7); m = -6/5

A. y – 7 = -6/5(x + 3)
B. y + 3 = -6/5(x + 7)
C. y – 7 = -6/5(x – 3)
D. y + 7 = -6/5(x + 3)

Answers

Answer:

D. y + 7 = -6/5(x + 3)

Step-by-step explanation:

Answer:

B. y + 7 = -6/5 (x+3)

Step-by-step explanation:

Use the given slope and point to substitute into the point-slope formula  y − y 1 = m ( x − x 1 ) .

Slope-intercept form:  y = − 6 /5 x − 53 /5

Point-slope form:  y + 7 = − 6 /5 ⋅ ( x + 3 )

can someone help with math please

Answers

Answer:

first exercise:

24

10

0

-2

-8

-11

exercise two:

neither of them

Step-by-step explanation:

start with the greater number which is not negative numbers = 24, and so on, last is -11

neither of them is true

FDP HELP PLEASE
THANK YOU SO MUCH

Answers

Answer:

he jumps 0.30 metres much further

Is this correct can someone please check it

Answers

9514 1404 393

Answer:

  10. needs work

  11. correct

  12. correct

  13. correct

Step-by-step explanation:

In general, it is a good idea to write a statement that answers the question asked. Simply solving an inequality for "x" rarely answers the question (unless it is a question that asks for the value of "x"). It is often best to try to use the wording that the question uses.

It is also a good idea to say what your variable represents.

__

10.

The required relation is "cheaper than" so the "or equal to" case does not apply. The variable represents messages, so the solutions will be integers.

  "Nadine can send and receive more than 33 messages so the unlimited plan is cheaper."

__

11.

"Becky can afford at most 8 fish."

__

12.

"Loretta must drive more than 260 miles farther to reach Pensacola."

__

13.

"Terri can spend at most 35 minutes listening to music."

_____

Additional comment

The wording of the question in problem 10 is unconventional, but we have elected to use it anyway in the above answer. We could write "The unlimited plan is cheaper if Nadine sends and receives a total of more than 33 messages."

Please help me my brain is so fried rn.

Answers

My brain is too whyyy

Find the slope of the line through the pair of
points (simplify all fractions).
(6, 10), (-20, 14)

Answers

Answer:

-0.15

Step-by-step explanation:

[tex]\frac{y{2}- y{1} }{x{2}-x{1} }\\[/tex]      is the formula

now let's subsitute into the formula with our points (6,10) and (-20,14)

[tex]\frac{14-10=4}{-20-6=-26}[/tex]

now we have the fraction [tex]\frac{4}{-26}[/tex]     or -0.15

Did you know it takes about 40 pounds of olives to make 3 liters of olive oil? Orchard A grew about 2000 pounds of olives. How many liters of olive oil would this make?

Answers

Answer:

150

Step-by-step explanation:

Using the unitary method,we can say that 150  liters of olive oil it will make.

What is unitary method?The unitary method is a technique in mathematics for solving a problem by finding the value of a single unit, I.e.,1,(by dividing) and then finding the necessary value by multiplying the single unit value.A method of solving a problem that involves first determining the value of a single unit,And then multiplying that value to determine the required value.

According to the question,

40 pounds of olives to make 3 liters of olive oil.2000 pounds of olives will make 150  liters of olive oil.    3/40= 0.075 0.075 * 2000150

hence,We may estimate that 150 liters of olive oil will be produced using the unitary approach.

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In this line circles the ratio of red circles to blue is 1:3 . How many more red circles would need to be added to make the ratio of red and blue 3:1?

Answers

Answer:

take two blue away and add two red

Step-by-step explanation:

Need help now please please

Answers

Iv the length of line segment

Express (5a3n)3 with positive exponents.

Answers

I think you meant to expand this.

(5a³n³)

= (5a³n¹)³

= 5³ (a³)³ (n¹)³

=》5³ = 5 × 5 × 5 = 125

=》(a³)³ = a⁹

=》(n¹)³ = n³

5³ (a³)³ (n¹)³

= 125a⁹n³

Note :-

=》(aᵇ)ᵇ = aᵇ ˣ ᵇ

_____

RainbowSalt2222 ☔

what is the slope intercept equation for the following line

Answers

Answer:

y= 2x + 7

Step-by-step explanation:

2= slope which is rise/run and 7= y intercept

plz help ill give brainliest !!!!!Which expression is equivalent to 6(g + 7)?
42g + 6
6g + 42
42g
13g

Answers

Answer:

6g+42

To be certain, expand the brackets; (6×g) (6×7)

Step-by-step explanation:

A cheerful teen willing to help,

have a splendiferous day/night ahead!

stay salty...

Answer:

6g + 42

Step-by-step explanation:

[tex]6(g + 7)\\\rule{150}{0.5}\\\rightarrow 6 * g = 6g\\\\\rightarrow 6 * 7 = 42\\\\\rightarrow 6(g+7) = \boxed{6g + 42}[/tex]

Could somebody help and explain pls thank you

Answers

Answer:

Y=mx+b

Step-by-step explanation:

All your doing if finding were the point starts which would be 1 and the slope of the graph which is 0.5 so your answer would be y=0.5x+1 but in the way they want you to write it in it would be 1+0.5x=Y.

Help please !! It’s about slopes

Answers

Answer:

but what do you have to do tho

Step-by-step explanation:

Choose Yes or No to tell whether each rate is a unit rate, 1/ 1/3 , 2/3 / 1 , 2/3 , 3/1​

Answers

Answer:

Unit rate is literally 1/x.

Step-by-step explanation:

U can figure out the rest!

7+3x5-4(divided by)2+3 USING PEMDAS SHOW YOUR WORK
WILL MAKR BRAINLIEST

Answers

Answer:

23

Step-by-step explanation:

(PEMDAS)

No parentheses

No exponents

Multiply 3*5= 15

Divide -4/2 = -2

Rewrite equation

7+15-2+3➡22-2+3➡20+3

23

Answer: 23

Step-by-step explanation: Multiply 3*5= 15

Divide -4/2 = -2

After, rewrite the equation

7+15-2+3 22-2+3 20+3

Answer : 23

Can yell help me pweaseeeee I need help with 7

Answers

Answer:

False

Step-by-step explanation:

Lines that intersect at right angles are called parallel. False

They are called intersecting lines.

Answer:

False

Step-by-step explanation:

This is false, lines that are always the same distance apart and never intersect are paralle. Line that intersect at a right angle are called perpendicular. See the image.

Use the vertical line test to determine if the graph represents a function. Type in yes or no for your answer. Please answer as soon as possible

Answers

Answer:

Yes

Step-by-step explanation:

Yes it is a function.

Brain cells aren’t working right now sorry please help

Answers

Answer:

Step-by-step explanation:

6 lol

6 hahahahahaahahaaahaahaah

There are ______ decigrams in 14 hectograms.

Answers

Answer:

14000

Step-by-step explanation:

BRAINLIEST PLSSSSS

Answer:14000 decigrams

Step-by-step explanation:

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