When solving this system of equations, what is the first step and why?
2x + y = 15
x-y=3

Answers

Answer 1

Answer:

Step-by-step explanation:

Rearrange:

x-y=3

x=3+y

Substitute  x as 3+y

so you can solve for y:

2(3+y)+y=15

6+3y=15

y=3

Use x=3+y to find x.


Related Questions

Victoria buys a two-gallon bottle of juice for $48.64. What is the unit rate of the cost of the juice per fluid ounce? I need this asap

Answers

Answer:

2.6315789473

Step-by-step explanation:

Hope this helps!

Ty uses 20 ft of fence to divide into 4 equal parts all in one row. Each aware part is 2 feet long. What is the area of the garden?

Answers

Answer:

10

Step-by-step explanation:

20 divided by 4 = 5 and times it from there

please-awnser-math-warm-up-

Answers

Answer:

not

Step-by-step explanation:

sure try calaculationg everything

Answer:

A

Step-by-step explanation:

2/3 x + = 15
solve the following equation

Answers

Answer:

26wb trial corp Cisco soap

Recall that the center of dilation is point J. On the logo, identify one or two line segments: that contain the center of dilation that do not contain the center of dilation that lie on a line that passes through the center of dilation Record the names of the line segments you identified and the category they belong to. What differences do you notice in the way these categories of line segments are mapped from the preimage to the image?

PLATO

Answers

Answer:

HA , LJ , and IK contain the center of dilation. Line segments that contain the center of dilation in the preimage also contain the center of dilation in the image. GF , HI , and KL do not contain the center of dilation. Line segments that do not contain the center of dilation in the pre image are mapped onto distinct lines parallel to the original, corresponding line segment. HL does not contain the center of dilation either but it does lie on a line that passes through the center of dilation. Line segments that lie on lines passing through the center of dilation in the preimage lie on the same lines in the image.

Step-by-step explanation:

Plato’s Answer

Answer:

Step-by-step explanation:

HA , LJ , and IK contain the center of dilation. Line segments that contain the center of dilation in the preimage also contain the center of dilation in the image. GF , HI , and KL do not contain the center of dilation. Line segments that do not contain the center of dilation in the pre image are mapped onto distinct lines parallel to the original, corresponding line segment. HL does not contain the center of dilation either but it does lie on a line that passes through the center of dilation. Line segments that lie on lines passing through the center of dilation in the preimage lie on the same lines in the image.

help hurry pls i’ll cashapp you

Answers

I believe your answer would be D
Answer : D
-4 -7 = -11
-8i + 2i = -6i
Hope this helps

a car drives 50 miles in 40 minutes. how many miles does the car travel per minute

Answers

50 divided by 40 equals 1.25! So the car is going 1.25 mph


Find The Area of this
Triangle
5 cm
13 cm
12 cm

Answers

the correct answer is 30cm

PLSSSSSS HELP ITS SOOO HARD BUT LOOKS SOOOO EASYYY

Answers

Answer:

78.54

Step-by-step explanation:

Area of a circle = pi time radius power of 2

A = pi*r^2

A = 3.14 * 5^2

A = 3.14 * 25

A = 78.54

Write a situation to represent this inequality:
72 - 12a < 24

Answers

Answer:

The length of a poster is 72 less than 12 times the width, if it adds up to less than 24, you must find the width.

Help ASAP!!!
Which of the following statements are true for the transformation of the pre image to the Image? Choose all that apply. There is more than one correct answer. Write the answer as just the
letters, for example if you think the first 2 equations are correct write A,B.
A) The transformation is a rotation 180 degrees counterclockwise
B) The transformation is a refection over the x axis
C) The symbolic representation is (X,Y)->(-x, -y)
D) The symbolic representation is (x,y)->(x-3,y-5)

Answers

Answer:

i cant see it

Step-by-step explanation:

(x +5) (x -2) h e l p m e

Answers

Answer:

x=10

Step-by-step explanation:

Here you go your answer:)))

The sum of two consecutive numbers is -91. Find the value of the smaller number

Answers

Answer: -46

Step-by-step explanation:

Consecutive means next in order.

Sum means answer to an addition problem.

-45 + -46 = -91

-46 is smaller (farther away from zero) than -45

The problem of the Week!

Akira and Hideo are twins with different jobs. Akira earns five-eighths of what
Hideo earns, but Akira’s expenses are half of Hideo’s. Akira ends up saving 40%
of his income.
What percentage of his income does Hideo save?

Answers

Answer:

12.8

Step-by-step explanation:

Colin always takes his laundry to the laundromat for cleaning. Today, he has 5 items for dry cleaning and 12 items for regular washing. If each item of dry cleaning weighs 3/4 pound, and each item of regular laundry weighs 5/16 pound, how much does all of Colin’s laundry weigh?

Answers

Answer: 7 1/2 pounds

Step-by-step explanation:

Calculate the percentage loss made on a boat valued at $50,000 and sold for

$44,000.​

Answers

Answer:

22 percent is the loss ....

how can i solve this

tan2x/(tan4x-tan2x)​

Answers

the answer is yes i did this before so hope that helps

Answer: = cos 4x

[tex]\frac{tan2x}{tan4x-tan2x}\\\\=\frac{tan2x}{\frac{2tan2x}{1-tan^{2}2x }-tan2x }\\\\=\frac{tan2x(1-tan^{2}2x) }{2tan2x-tan2x(1-tan^{2}2x) }\\\\=\frac{tan2x(1-tan^{2}2x) }{tan2x(2-1+tan^{2}2x) }\\\\=\frac{1-tan^{2}2x }{1+tan^{2}2x } \\\\=\frac{1-\frac{sin^{2}2x }{cos^{2}2x } }{1+\frac{sin^{2}2x }{cos^{2}2x } }\\\\=\frac{cos^{2}2x-sin^{2}2x }{cos^{2}2x+sin^{2}2x } \\\\=\frac{cos4x}{1}\\\\=cos4x[/tex]

Step-by-step explanation:

If p:q=2/3:2 and p:r=3/4:1/2, calculate the ratio p:q:r

Giving your answer in its simplest form. Thx and God Bless.

Answers

Answer:

i did dude.may God bless you.sorry.l

can someone please help ​

Answers

You find the intersection point of the two lines, which is (3, -2).

It is what the question meant when it asked for "solution".

These two lines are y = mx + c, which is another form of linear equations with two variables you are likely familiar with

x+y=20

x-y=10

Hope this clears up your confusion.

i need help asap i’ll give brainliest

Answers

Answer:

x=130 I believe

Step-by-step explanation:

28+8+14+x=180

50+x=180

x=130

Write this expression in standard form ... 3(-2a - 5)

Answers

Answer:

-6a - 15

Step-by-step explanation:

Just distribute

why can you NOT divide by zero? explain and write paragraph HELP ASAP PLEASE

Answers

In ordinary arithmetic, the expression has no meaning, as there is no number which, when multiplied by 0, gives a (assuming a ≠ 0), and so division by zero is undefined. Since any number multiplied by zero is zero, the expression 00 is also undefined; when it is the form of a limit, it is an indeterminate form.

Answer:

you cant divide by nothing. zero has no value so be dividing by nothing. also your outcome would be nothing. hope this helps

i would ask for brainly but im not sure i was much help

Step-by-step explanation:

please give me a ez question to answer please i need more points

Answers

ill give you 50 pints for a brainliest

Joey wants to join the gym. The gym has a membership fee of $50 then $25 per month. How much will it cost Joey if he goes to the gym all year?

Answers

12x25+50=350 answer$$

Please!!
Select all that apply, for how to correctly name the plane. Hint: 4 answers are correct!

Answers

number one (JKL) is one of the answers

12. Why is the following NOT a function?

(7,5) (3,5) (0,-2) (7,4) (8,-2) ​

Answers

because the 7 is used more than once.

△MNO maps to △RST with the transformation (x, y) longrightarrow ( 1 3 x, 1 3 y). Choose True or False for each statement. A. If RT = 3, MO = 9. A True B False B. If RT = 12, MO = 4. A True B False C. If RT = 9, MO = 27. A True B False

Answers

Answer:

The answer is below

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

Dilation is the enlargement or reduction in size of a figure. If a figure with point A(x, y) is dilated by a scale factor k, the new point is at A'(kx, ky). If k > 1, it is an enlargement and if k < 1, it is a reduction.

Since ΔMNO maps to ΔRST with a transformation (x, y) = (3x, 3y), this means that ΔRST is three times the size of ΔMNO, hence all the sides of ΔRST are three times that of ΔMNO.

A. If RT = 3, MO = 9. A True B False B.

This is false because RT = 3 * MO = 3(9) = 27

B. If RT = 12, MO = 4. A True B False

This is true because RT = 3 * MO = 3(4) = 12

C. If RT = 9, MO = 27. A True B False

This is false because RT = 3 * MO = 3(27) = 81

What value of x is in the solution set of -5x – 15 > 10 + 20%?
-2
-1
0
1

Answers

Answer:

-1

Step-by-step explanation:

-5x – 15 > 10 + 20x

-5x -20x > 10+15

-25x > 25

x < -1

please help i don’t understand

Answers

A line is 180 so you subtract 126 with 180 and get 54. Since a Triangle angles all equal 180 together you add 54 and 43 and subtract 180 and the answer is 83

Answer:

You have to fine the number that matches with the "X" so the answer would be 126 divided by 43 which is 2.9. 2.9 is closer to 3 than 2 so the "x" is 3

Step-by-step explanation:

Eve won a bag full of money! She has 49 bills in all. She counts $1430. There are twenty dollar bills and fifty dollar bills. How many of each bill does Caitlin have?
Answer: (Just type the number.)
Number of $20 bills:
Number of $50 bills:​

Answers

Number of $20 bills: 34

Number of $50 bills: 15

The equations are

x + y = 49

20x + 50y = 1430

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