Lin and Priya were working on solving this system of equations.



Lin's first move is to multiply the first equation by 3.

Priya's first move is to multiply the second equation by 2.

Explain why either move creates a new equation with the same solutions as the original equation.

Answers

Answer 1
the same solutions don’t move because they have no legs

Related Questions

Can somebody give me the answer to this?

Answers

Step-by-step explanation:

y = x - 4

Let's look at this a different way.

Y will be 4 less than x, so if x was 5, y would be 1

(x, y)

0, -4

1, -3

2, -2

3, -1

4, 0

5, 1

(If more points are needed, just continue where I left off.)


What is the greatest number of lines of symmetry that can be drawn on the figure
shown below?
А о
B 1
C 2
D 4

Answers

The greatest number of lines of symmetry that can be drawn on the figure will be C. 2.

What is a line of symmetry?

The line of symmetry is defined as the axis or imaginary line that passes the center of the shape or object and divides it into identical halves.

Here, the greatest number of lines of symmetry that can be drawn on the figure will be 2. This means that if one was to fold the shape along the line, both halves would match exactly.

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Ella ate half of her gummy bears before
adding thirteen more to the bowl. If she now
has 25 gummy bears, how many did she start
with?
Give an equation.

Answers

Answer is 24


Explanation: grab 25 and minus 13, then grab 12 and multiply by two. Should get 24

whats 40 + 40 + 40 X 2

Answers

40 + 40 + 40x2
= 40 + 40 + 80
= 160

Answer:

160

Step-by-step explanation:

40 + 40 + 40 X 2=160

This is the answer

GIVE A DETAILED AND GOOD ANSWER FOR BRAINLIEST
Question 2(Multiple Choice Worth 5 points)
(06.08A LC)

Look at the triangle ABC.

Coordinate grid shows negative 5 to positive 5 on the x axis and y axis at intervals of 1. A triangle ABC is shown with A at ordered pair 4, 5, B at ordered pair 2, 1, and C at ordered pair 4, 1.

What is the length of the side AB of the triangle?

2
Square root of 20
6
Square root of 38

Answers

Answer:

√20 units

Step-by-step explanation:

[tex]Solution,\\\\\hookrightarrow Here,\\\\\hookrightarrow Coordinate\:of\::\\\\\hookrightarrow A(4,5),B(2,1),C(4,1)\\\\Now,\\\\Let,\\\\(x_1,y_1)=(4,5)\\\\(x_2,y_2)=(2,1)\\\\Using\:distance\:formula\\\\Distance\:of\:AB=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2}} \\\\Distance\:of\:AB=\sqrt{(2-4)^{2}+(1-5)^{2}} \\\\Distance\:of\:AB=\sqrt{(2-4)^{2}+(1-5)^{2}} \\\\Distance\:of\:AB=\sqrt{(-2)^{2}+(-4)^{2}} \\\\Distance\:of\:AB=\sqrt{4+16} \\\\Distance\:of\:AB=\sqrt{20}\: units[/tex]

help me if you know the answer dont reply if u dont know

Answers

Answer:

A). x=3/4

Step-by-step explanation:

2(6-2x)-2x=2(5+x)-4

Rearrange terms,

2(6-2x)-2x=2(5+x)-4

2(-2x+6)-2x=2(5+x)-4

Distribute,

2(-2x+6)-2x=2(5+x)-4

-4x+12-2x=2(5+x)-4

Combine like terms,

-4x+12-2x=2(5+x)-4

-6x+12=2(5+x)-4

Rearrange terms,

-6x+12=2(5+x)-4

-6x+12=2(x+5)-4

Distribute,

-6x+12=2(x+5)-4

-6x+12=2x+10-4

Subtract the numbers,

-6x+12=2x+10-4

-6x+12=2x+6

Subtract 12 from both sides,

-6x+12=2x+6

-6x+12-12=2x+6-12

-6x=2x+6-12

-6x=2x-6

Subtract 2x from both sides,

-6x=2x-6

-6x-2x=2x-6-2x

-8x=2x-6-2x

-8x=-6

Divide both sides by the same factor ( -8),

-8x/-8=-6/-8

x=-6/-8

x=3/4

to decide which tin of coffee is better value for money, calculate the price per gram of a 250g tin of coffee for R29.49 and a 750g tin of coffee for R69.99​

Answers

Answer:

250g tin

Step-by-step explanation:

250g tin is 8.48g per R

750g tin is 10.77g per R

solve for g:2(g-h)=b+4

Answers

Answer:

[tex]g = \frac{b}{2} + 2 + h[/tex]

Step-by-step explanation:

[tex]2(g - h) = b + 4 \\g - h = \frac{b}{2} + \frac{4}{2}\\g = \frac{b}{2} + 2 + h[/tex]

What is the slope of the line that passes through the points ( 8 , − 6 ) and (8,−9)? Write your answer in simplest form.

Answers

Answer:

No slope

Step-by-step explanation:

The points given are on the vertical line x = 8

   vertical lines have an 'undefined' slope....no slope

Each day, a salesperson earns $25 plus 5% of their total sales for the day. The salesperson's goal is to earn more than $50 on Thursday.

Answers

They need to sell $500 of stuff

4) Increase 340g by 20% ​

Answers

Add the percentage as a decimal

To 1 to get 1.20

Multiply:

340 x 1.20 = 408


Answer: 408

Which of these is NOT likely to be found on your credit report? A) current address B) previous employer C) church membership D) Social Security number

Answers

The answer to your question is C.

use long division to determine the decimal equivalent of 7 over 9
A. 0.6
B. 0.7
C. 0.8
D. 0.9

Answers

Answer:

C.  0.8

Step-by-step explanation:

Write 7 as 7.00:

[tex]\begin{array}{ c c c c }& 0. & 7 & 7\\\cline{2-4} 9\:)&7.&0&0 \\-& 0 & \downarrow & \downarrow\\\cline{2-4} & 7 & 0 & \downarrow \\- & 6 & 3 & \downarrow\\\cline{2-4} & & 7 & 0\\& - & 6 & 3\\\cline{2-4} & & & 7\\\end{array}[/tex]

Therefore:

[tex]\sf \dfrac79=0.\.{7}=0.77777..=0.8\:(nearest\:tenth)[/tex]

Which polynomial is in standard form?

Answers

B:
Explanation that equation is the B

I am on my trigonometry unit in math and don’t know what to do for this. I also really need work shown!

Answers

Answer:

The flight was 137.45 miles farther than the direct path.

(make slight changes if directions were given on how to round. This is to the nearest hundredth)

Step-by-step explanation:

Use the Law of Cosines.

c^2=

a^2+b^2-2abcosC

You know two sides and the angle in between. The Law of Cosines will give us the third side.

The third side is the direct path of the airplane. We'll add the two other given sides to find the detour route that they took instead.

Then subtract the smaller number (direct route) from the actual route. See image.

A park maintenance person stands 16m from a circular monument. Assume that her lines of sight from tangents to the monument and make an angle of 47 what is the measure of the arc of the monument that her lines of sight intersect?


A) 23. 5


B) 94


C) 266


D) 133

Answers

Answer:

D 133 degrees

Step-by-step explanation:

The measure of an angle external to a circle = the difference of the two arcs intercepted divided by 2

47  = [ (360 - x) - x ] / 2

94 = 360 - 2x

x = 133 degrees of the arc

In how many distinguishable ways can the letters of the word ILLINOIS
be ordered?


Answers

Answer:

3360 ways

Step-by-step explanation:

ABCDEFGH-- there are 8! ways to organize these letters

since the I is repeated 3 times and the L is repeated 2 times we have to divide by (3!*2!)

[tex]\frac{8!}{2!3!}[/tex]=3360

3360

Answer:

7

Step-by-step explanation:

Since the two L’s must be consecutive, we consider them to be a single letter LL. Then the word ILLINOIS has n = 7 letters: 3 I’s, 1 LL, 1 N, 1 O and 1 S. Hence the numbers of ways to permute letters of the word ILLINOIS if the two L’s must be consecutive is: 7!

Tyler made a scale drawing of his apartment. The scale is 1 millimeter: 2 meters. The living room is 6 meters long in real life. How long is the living room on the drawing in millimeters?

Answers

Answer:

Step-by-step explanation:

6/2 = 3

3:6 =

1:2

Oliver draws a straight angle, and then two rays to divide the angle into 3 equal parts. What is the measure of each smaller angle?

Answers

The measure of each smaller each angle is 30 degrees.

We have given that,

Oliver draws a straight angle, and then two rays to divide the angle into 3 equal parts.

What is the measure of the straight angle?

The measure of the straight angle is 90 degrees.

Therefore we get a straight angle is 90 degrees.

we have to divide the straight angle into 3 equal parts.

that is, 90/3=30

Therefore each angle is 30 degrees.

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PLEASE HELP ME MY 30 QUESTIONS ARE DUE TODAY!!!! ( 19 POINTS) (will also give brainliest)

Answers

Answer:

10 ft

Step-by-step explanation:

120÷12=10

So, 10x12=120

The answer is 10 ft

Answer:

B

Step-by-step explanation:

To find the width of the bedroom, divide 120 by 12. 10 feet is therefore the width. (Area = length x width.)

Which expression is equivalent to 15 + 3x?
A. 3(5+x)
B. 5(3+x)
C. 3(5+3x)
D. 5(3+3x)

Answers

Answer:

3(5+x)

Step-by-step explanation:

3(5 + x)

Answer:

See below ~

Step-by-step explanation:

Taking common factors

Factorize both the terms.

15 = 3 * 53x = 3 * x

The common factor is 3.

Now, group them together and solve.

15 + 3x3(5 + x)Option A

If anyone knows lmk, ty.

Answers

Answer:

6

Step-by-step explanation:

When multiplying numbers with the same base, just add the exponents. (4+2=6)

i need help asap !!!!!!

Answers

Answer:(6, -4)

Step-by-step explanation: That’s where they meet at point B

Answer:

Answer:(6,-4)

Step-by-step explanation:

they meet at point B

given that 9x=28-5x.find the value of x

Answers

[tex]~~~~9x=28-5x\\\\\implies 9x +5x = 28\\\\\implies 14x = 28\\\\\implies x = \dfrac{28}{14}\\\\\implies x = 2[/tex]

Step-by-step explanation:

Given Equation,

[tex]\\ \longrightarrow \qquad \sf 9x=28-5x \\ \\ [/tex]

Now, Adding 5x to both sides we get :

[tex]\\ \longrightarrow \qquad \sf 9x + 5x=28-5x + 5x \\ \\ [/tex]

[tex] \longrightarrow \qquad \sf 14x=28 \\ \\ [/tex]

Dividing 14 from both sides we have :

[tex]\\ \longrightarrow \qquad \sf \frac{14x}{ 14 } = \frac{28}{14} \\ \\ [/tex]

[tex] \longrightarrow \qquad \sf x=2 \\ \\ [/tex]

Therefore,

The value of x is 2

If you had a spinner with four possible outcomes and a six sided cube numbered 1-6. What is the sample space for the experiment?

Answers

Answer:

24

Step-by-step explanation:

The spinner has 4 equally possible outcomes. The die has 6 equally possible outcomes.
Multiply the possible outcomes.
4*6=24

Christina also plans on leaving her $10,000 invested for 20 years. Write an equation representing her investment’s value, y, after x years. What is the value of Christina’s investment after 20 years?

Answers

The required equation is y = 10000(1.0.25)^2x. The value of Christina’s investment after 20 years is $30,773.14

Compound interest

The interest accrued on a sum of money is known as interest. The formula for calculating the compound interest is expressed as:

y = y0(1+r/n)^nx

where

x is the time taken

r is the rate in decimal

n is the compounding time


Given the following

x = 20 years

n  2(semi annually)

r  = 5.7% = 0.057

Substitute

y = 10000(1+0.057/2)^2(20)
y = 10,000(1 + 0.0285)^40

y = 10000(1.0285)^40
y = 30,773.14

Hence the value of Christina’s investment after 20 years is $30,773.14

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can anyone pls help? ​

Answers

Answer:

Yes!!

Step-by-step explanation:

It is because -4 is smaller than 3. All negative numbers are smaller than positive ones. :)

Have an amazing day!!

Please rate and mark brainliest!!

ASAP HELP
Who had the lowest median score? Justify your answer using mathematical reasoning.

Answers

Answer:

Annie:71

Step-by-step explanation:

Annie had the lowest because the scores go as said: 62,70,70,71,77,78,79

and you cross out the lowest and highest until you reach the middle

And for Katie: 0,89,93,93,95,100,100

crossing out until you reach the middle.

I need so much help with these two and quick if anybody can helpe out thanks.

Answers

Answer:I need so much help with these two and quick if anybody can helpe out thanks.

Step-by-step explanation:

I need so much help with these two and quick if anybody can helpe out thanks.

A triangle has side lengths measuring 2x 2 ft, x 3 ft, and n ft. which expression represents the possible values of n, in feet? express your answer in simplest terms. x – 1 < n < 3x 5 n = 3x 5 n = x – 1 3x 5 < n < x – 1

Answers

The expression x – 1 < n < 3x + 5 represents the possible values of n, in feet whose side lengths are (2x+2) ft, (x+3) ft, and n ft.

What is the triangle?

The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.

We have a triangle whose side lengths measures are (2x+2) ft, (x+3) ft, and n ft.

If we take the first two sides are (2x+2) ft, (x+3) ft, and third is n ft.

By the triangle property, that sum of the two sides is always greater than the third side.

2x+2+x+3 > n

3x+5 > n  .....(1)

Now take first two sides as n ft, (x+3) ft, and third side (2x+2) ft

n+x+3 > 2x+2

n > x-1 .....(2)

From the inequality (1) and (2), we get:

x – 1 < n < 3x + 5

Thus, the expression x – 1 < n < 3x + 5 represents the possible values of n, in feet whose side lengths are (2x+2) ft, (x+3) ft, and n ft.

Learn more about the triangle here:

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