Solve by elimination Solve by elimination or substitution: 4x + 2y = 6 and x - 3y = 5

Answers

Answer 1

Step-by-step explanation:

since we need to multiply only one equation with something, elimination might be a good method here. we bring both equations to 4x terms and then subtract the second from the first equation :

4x + 2y = 6

- 4x - 12y = 20

-----------------------

0 14y = -14

y = -1

=> e.g. in the second original equation

x - 3×-1 = 5

x + 3 = 5

x = 2


Related Questions

George wants to write the number “fifteen thousandths” in standard form. Explain to him how he would do this. Be sure to name the places his digits will go in. What is “fifteen thousandths” in standard form?

Answers

Answer:

0.015

Step-by-step explanation:

He would have to take 15 and put the decimal point 4 places to the left of the number.

If a value has thousandths, it goes 4 places to the left, hundredths goes 3 places to the left, tenths goes 2 places to the left and ones goes 1 place to the left.

The standard form is 10,000 + 5000.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

Fifteen thousandths

This can be written as,

= 15,000

It can be expanded as,

= 10,000 + 5,000

= 1 ten thousands + 5 thousands

Thus,

The standard form is 10,000 + 5000.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ5

1. Michael serves 1.5 quarts of juice for eight people if he’s going to serve 128 people how much juice does he need?


2. five out of nine people at Hawaiian Falls have a season pass if there are 360 people at the pool how many have a season pass?

Answers

Answer:

1. 24 qt

2. 200 people

Step-by-step explanation:

1. Use a proportion.

1.5 qt to 8 people = x qt to 128 people

1.5/8 = x/128

Cross multiply.

8x = 1.5 × 128

8x = 192

x = 24

Answer: 24 qt

2.

5/9 of number of people have a season pass.

number of people at pool = 360

5/9 × 360 = 200

Answer: 200 people

[(3 x 8) + 2?] + 6 - 2 Write out the steps Jayden will have to take in the yellow box? what are the steps?​

Answers

Answer:

[(3*8)+2]+6-2

PEMDAS

There are parentheses so solve what is in them

3*8=24

[24+2]

26+6-2

Do the addition

32-2

30 is your answer

30 steps

Find the value of x that makes the equation true:

x + 3 = 4

a. x = 12
b. x = 2
c. x = 1
d. x = 7

Answers

Answer to this question is option C


What are the odds of not rolling a three on a standard six-sided die?

Answers

Answer:

5/6

Step-by-step explanation:

Hope this is helpful

Answer:

5/6

Step-by-step explanation:

problem referred below
pls help

Answers

Answer:

B

7 less than 3 times a number (X) is (3x-7), and then the sum of these two numbers means we have (3x-7)+X, and then we know this equals 109, leaving us with:

(3x-7)+x = 109

what is 433.54 in terms of pi?

Answers

Answer:

The angle value 433.54 π rad (pi radian) in words is "four hundred and thirty-three point five four π rad (pi radian)".

Step-by-step explanation:

got the information from the internet

A car is traveling down a highway at a constant speed, described by the equation d=65t , where d represents the distance, in miles, that the car travels at this speed in t hours.

Complete the statement about the meaning of 65 in this situation.


The car travels_________ miles in ________ hour.

Answers

Step-by-step explanation:

10 1

20 miles car travel 65t hb

Which mixed number is represented by the shaded
area?
0 1 1/4
0 1 3/4
0 2 1/4
0 2 3/4
Hurry up plz I’m being timed

Answers

A. 1 1/4

Explanation: count all the orange boxes, the one is completely full which is all orange which is 1 and then there’s only 1 box filled on the second one

Hope this helps!

the answer to the question is 11/4

What is 2x=6 pls answer fasttt

Answers

[tex]2x = 6 \\ x = \frac{6}{2} = 3[/tex]

Answer:

×=6/2=3

Step-by-step explanation:

The length of a rectangular rug is 6 ft. more than the width. The perimeter is 40ft. find the length and the width of the rug.

Answers

width = 7ft
length = 13ft
Width is 7ft
Length is 13ft

Solve for x. Round your answer to the nearest tenth.

Answers

Answer:

-x + 20

Step-by-step explanation:

13-x+3+4

13 - x + 3 - 3 = 4 + 3

13 - x = 7

= -x + 7 + 13

= -x + 20

#Carry on Learning

Please take a look at the picture

Answers

Answer:

B) -3/10 x -6

Step-by-step explanation:

-3/10 x -6=-3 x -6/10

When multiplying two negatives you get a positive.

Hope this helps :)


35% of a number is what fraction of
that number?

Answers

Answer:

1/2

Step-by-step explanation:

because I just took the test

Answer:

Step-by-step explanation:

35/100 = 7/20

If √(0.09×0.09×x) = 0.09 × 0.09×√z, then the value of x/y is____.​

Answers

Given that-

√(0.09×0.09×x) = 0.09×0.09×√z

On squaring both sides then

⇛[√(0.09×0.09×x) ]² = (0.09×0.09×√z)²

⇛ 0.09×0.09×x= (0.09)²×(0.09)²×(√z)²

⇛ (0.09)² × x = (0.09)²×(0.09)²×z

⇛ (0.09)² × x/z = (0.09)²×(0.09)²

⇛x/z = (0.09)²×(0.09)²/(0.09)²

⇛x/z = (0.09)²

⇛x/z = 0.09×0.09

⇛x/z = 0.0081

Answer:- Hence the value of x/z will be 0.0081 r respectively.

Use the ALEKS calculator to write 2/63 as a percentage.
Round your answer to the nearest tenth of a percent.

Answers

Answer:

3.2%

Step-by-step explanation:

2 / 63 = 0.031746031746

0.031746031746 x 100 = 3.1746031746 and round

Mr. and Mrs. Bruce took a boat trip which left Cala for Friends’ Island at 11:45 in the morning. The trip lasted for 1 hour and 20 mins. When did they arrive at Friends’ Island?

Answers

they arrived at 1:05

plz help with this!!!

Answers

Answer:50

Step-by-step explanation:

cosθ(tanθ + cotθ) =

• cscθ

• secθ

• cos^2θ

• 1

Answers

Answer:

ayo i think is ufo trying to communicate hey alien we come in peace

Step-by-step explanation:

[tex]\cos \theta(\tan \theta + \cot \theta)\\\\=\cos \theta \tan \theta + \cos \theta \cot \theta \\\\=\cos \theta \left (\dfrac{\sin \theta}{\cos \theta} \right)+ \cos \theta \left(\dfrac{\cos \theta}{\sin \theta} \right)\\\\\\=\sin \theta + \dfrac{\cos^2 \theta}{\sin \theta}\\\\=\dfrac{\sin^2 \theta + \cos^2 \theta}{\sin \theta}\\\\=\dfrac 1{\sin \theta}\\\\=\csc \theta[/tex]

PLEASE HELP BRAINLEST TO WINNER!!!!!!!
The coordinates of a point on a coordinate grid are (−1, 5). The point is reflected across the x-axis to obtain a new point. The coordinates of the reflected point are

(1, −5)
(−1, 5)
(1, 5)
(−1, −5)

Answers

(-1, -5)

x-axis is to flip the y - coordinates

y-axis is to flip the x - coordinates

HELPPPPPP PLEASEEEEEEE

Answers

Answer:

It has been a long time since I was even thinking about this, but I got 33 for the first one and I know how you feel, stay strong, you have a long time until you are finished

Step-by-step explanation:

(this might and probobly is wrong)

33% of what number is 1.45? Round to the nearest tenth.

Answers

Take the unknown number as 'y'.

=》33% = 33/100

=》1.45 = 145/100

33/100 × y = 1.45

33/100 × y = 145/100

33y = 145/100 × 100/1

33y = 145

y = 145/33

y = 4.39

______

RainbowSalt2222 ☔

4,39

I'm sorry if I'm wrong

addison had 560 blue marbles and 279 red marbes . How many fewer red marbles does she have then blue

Answers

Answer:

281

Step-by-step explanation:

9514 1404 393

Answer:

  281

Step-by-step explanation:

The difference between the numbers of marbles is found by subtraction.

  560 -279 = 281

Addison has 281 fewer red marbles than blue.

Question is in picture

Drag and drop the steps in order to correctly complete the proof

Answers

9514 1404 393

Explanation:

The correct order of the steps is ...

(Given)(Definition of supplementary)(Substitution)(Subtraction ...)(Definition of congruent angles)

A proof always starts with "given". It always ends with a statement of what you have proved.

To fill in the sequence between these, it helps to think about what the relationships are and why you can conclude that the theorem is correct.

Will mark as brain list if answered correctly

Answers

Answer:

The answer is 3

Step-by-step explanation:

I am sure.

Answer: i think it is 3

Step-by-step explanation:

Mrs. Salcido cut a small birthday cake into 6 equal pieces for 6 children one child was not hungry, so she gave the birthday boy a piece. draw and label a tape diagram to show how much each of the 5 children receive.

Answers

Answer: Answer below.

Step-by-step explanation:

Because one child was not hungry and the cake was cut into 6 equal pieces, this mean one person got 2/6 or 1/3 of the cake and the rest got 1/6 other than the child who was not hungry. I can't draw this but you want to draw a child with 2 equal slices of the cake, one with no slices, and 4 more with 1/6 slices of the cake. Sorry I couldn't draw it, but hope this helps!

5 is 10% of what plz i need help​

Answers

Answer:

50

Step-by-step explanation:

Pleas someone help me with this it's my last question

Answers

Answer:

we need to find out if the following get x = 2 as a final product

-2(x-4) = 4

-2x + 8 = 4

-2x = -4

x = 2

so it is a solution

26/x = 13

26 = 13x

x = 26/13

x = 2

so it’s a solution

-3.8x = -7.4

x = 7.4/3.8 ≠ 2

you get ≈ 1.95

so it’s not a solution

4(x-1) - 3(x-2) = -8

4x - 4 - 3x + 6 = -8

x + 2 = -8

x = -10

so it’s not a solution

Answer:

x= 2 is the solution of first two equations.

Step-by-step explanation:

A cookie factory uses 9/10 of a bag of flour in each batch of cookies. The factory used 4 1/2 bags of flour yesterday. How many batches of cookies did the factory make?

Answers

if the factory uses 9/10 out of a bag of flour for each batch of cookies and ended up uses 4 1/2 bags for all the factory made
9 BATCHES OF COOKIES

an expression for the area of a rectangular piece of sheet metal is X^2+8x+12.
An expression for the length of the same piece of sheet metal is x+6.
Determine an expression for the width.

Answers

[tex]\text{Area of rectangle} = \text{Length} \times \text{Width}\\\\\\\implies \text{Width} = \dfrac{\text{Area of reactangle}}{\text{Length}} = \dfrac{x^2 +8x +12}{x+6} = \dfrac{x^2 + 6x +2x +12}{x+6}\\\\\\\\ = \dfrac{x(x+6) +2(x+6)}{x+6}=\dfrac{(x+6)(x+2)}{x+6} = x+2[/tex]

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