Mathematics College

Pls hurry and help!!!!3x-2y=4
6x-2y =-2 solve the equations by using elimination show work

Answers

Answer 1
Refer to the attachment ......

I hope my steps are clear to uh

Pls Hurry And Help!!!!3x-2y=46x-2y =-2 Solve The Equations By Using Elimination Show Work
Answer 2

Answer:

x=−2 and y=−5

Step-by-step explanation:

Solve3x−2y=4for x:

3x−2y=4

3x−2y+2y=4+2y(Add 2y to both sides)

3x=2y+4

3x /3 = 2y+4 /3 (Divide both sides by 3)

x= 2 /3 y+ 4 /3

Substitute  2 /3 y+ 4 /3 for x in6x−2y=−2:

6x−2y=−2

6( 2 /3 y+ 4 /3 )−2y=−2

2y+8=−2(Simplify both sides of the equation)

2y+8+−8=−2+−8(Add -8 to both sides)

2y=−10

2y /2 = −10 /2 (Divide both sides by 2)

y=−5

Substitute−5 for y in x=

2 /3 y+ 4 /3 :

x= 2 /3 y+ 4 /3

x= 2 /3 (−5)+ 4 /3

x=−2(Simplify both sides of the equation)

Related Questions

б – 3 = 3 + 6
Solving for the variable

Answers

Answer:

Step-by-step explanation:

Um well the variable would be 12

Answer:

The answer is 12

Step-by-step explanation:

Solve for  it by simplifying both sides of the equation, then isolating the variable.

Hoped this helped!

Brainly, please?

Carla lifted 40 pounds at practice. How many ounce did she lift?

Answers

Answer:

the ounces to that is 640 ounces  

Step-by-step explanation:

Find the area of the shape shown below.
3.5
2
2.
units?

Answers

9514 1404 393

Answer:

  26.75 square units

Step-by-step explanation:

Above the dashed horizontal line(s) is a triangle with base 9 and height 3.5. Its area is ...

  A = (1/2)bh

  A = (1/2)(9)(3.5) = 15.75 . . . . square units

__

Below the dashed horizontal line(s) is a trapezoid with bases 9 and 2, and height 2. Its area is ...

  A = (1/2)(b1 +b2)h

  A = (1/2)(9 +2)(2) = 11 . . . . square units

The sum of these areas is the area of the shape:

  total area = 15.75 +11 = 26.75 . . . . square units

. What is the change of temperature if it was -20 degrees and rose to 14 degrees?​

Answers

Answer:

34

Step-by-step explanation:

please mark brainly :)

Dakota has 4/10 kg of clay he divided the clay to make eight equal parts how many grams of clay are in each pot

Answers

Answer:

Dakota must put 50 grams of clay in each pot to be able to divide the clay into 8 equal parts.

Step-by-step explanation:

Given that Dakota has 4/10 kg of clay and I divided the clay to make eight equal pots, to determine how many grams of clay are in each pot the following calculation must be performed:

4/10 kg = 0.4 kg = 400 grams

400/8 = X

50 = X

Thus, Dakota must put 50 grams of clay in each pot to be able to divide the clay into 8 equal parts.

12(x+1/6)=8 solve for x

Answers

X = 1/2 or X = 0.5.
The value of x is 1/2
Working shown below:

What is sample mean of 6,7,1,9,2,4,5,5,3,3,7,8

Answers

Answer:5 and 3

Step-by-step explanation: They are tho samples bc they are the ones tht are duplicated (x2)

I need help on this question

Answers

Answer:120 DEEGREES

Step-by-step explanation:

Ammeters produced by a manufacturer are marketed under the specification that the standard deviation of gauge readings is no larger than 0.2 amp. One of these ammeters was used to make ten independent readings on a test circuit with constant current. The sample variance S 2 of these ten measurements is 0.0653 and it is reasonable to assume that the readings are normally distributed. Find the approximate probability that the sample variance will exceed 0.0653 if the true population variance is 0.04

Answers

Answer:

0.101

Step-by-step explanation:

Given that :

Standard deviation, s = 0.2

Sample variance, s² = 0.0653

Sample size, n = 10

Population variance = σ² = 0.04

We use the Chi square distribution :

(n - 1)s² / σ²

For P(s² ≥ 0.065)

(n - 1)s² / σ² = (10 - 1)*0.0653 / 0.04

(n - 1)s² / σ² = 0.585 / 0.04 = 14.625

P(s² ≥ 14.625) = 0.101 ( chi squee calculator).

help? please give the right answer it’s urgent:(

Answers

Answer:

0.04

Step-by-step explanation:

3/4÷1/5 gffgdfdgfggdggdgdgdfgdgdgdgdgdgdgdgdfgdfgdgd ancer

Answers

Answer:

improper fraction- 15/4

Mixed number-  3  3/4

Decimal- 3.75

Step-by-step explanation:

use K.C.F (Keep Change Flip)

A vertical line has a run which is
A. 1
B -1
C. undefined
D. Zero

Answers

Answer:

A. 1 vertical line hasa run which is

3) Andy earned 1,000$. He used 25% to buy food and 50% to pay
the rent. The rest he saved. How much money did he save?

Answers

Step-by-step explanation:

1000 devided by 75% gives 250

Evaluate −6 − (−4). (10 point)
−10
−2
24
2

Answers

Answer: negative 2 (-2)

Step-by-step explanation:-6+4=-2

Answer:

−2

Step-by-step explanation:

−6 − (−4)

= −6 − (−4)

= −6 + 4

= −2

Kecia made a password that consists of 4 digits, 0-9. None of the digits are the same. How many possible passwords did Kecia choose from? (HOW DID YOU GET YOUR ANSWER PLEASE SHOW YOUR WORK!!)


A. 70%
B. 5040
C. 5.2
D. 4(2X+4)
E. 300%
F. 2.5
G. 5267
H. 4X(2X-4)
I. 299%
J. .4

Answers

Answer:

There are 9 possible numbers for the first number. There are 8 possible numbers for the second number since one number has been picked. For the third number there are 7 possible numbers.

9*8*7=5040

Step-by-step explanation:

The sum of 3 consecutive even interfere is 258. What is the smallest number

Answers

Answer:

85 is the smallest number

Find X. Round to the nearest tenth if necessary

Answers

Answer:

3.2 probably I don't really know

Step-by-step explanation:

someone please help this person

14 masons can build 2 houses in 6 months. Find how many houses 21 masons can build in the same duration.

Answers

Answer:

3 houses

Step-by-step explanation:

2 houses = 14 masons

1 house = 14 ÷ 2 = 7

Find out what 21 ÷ 7 is, which is 3.

So 21 masons can build 3 houses in 6 months.

2. Three fourth of the students and an additional 18 students at the school purchased a spirit shirt during the last fundraiser. If 336 shirts were ordered, how many students are there in the school?​

Answers

Step-by-step explanation:

The correct answer is 237

Answer:257

Step-by-step explanation:

What is the value of r of the geometric series?

Sigma-Summation Underscript n = 1 Overscript 3 EndScripts 1.3 (0.8) Superscript n minus 1

Answers

Answer:

A) 0.8

Step-by-step explanation:

0.8 on edge.

The value of r of the geometric series is 4/5.

What is geometric series?

The geometric series defined as a series represents the sum of the terms in a finite or infinite geometric sequence. The successive terms in this series share a common ratio.

The nth term of a geometric progression is expressed as

Tₙ = arⁿ⁻¹

Where a is the first term, r is the common ratio

Given the formula for the geometric series expressed as

[tex]_3\\\sum{1.3(0.8)^n^-^1}\\n=1[/tex]

Comparing both equations

rⁿ⁻¹  =  (0.8)ⁿ⁻¹

r = 0.8

r = 8/10

r = 4/5

Hence, the common ratio is 4/5.

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What is the decimal equivalent of 3/6%

Answers

Answer:

0.5

Step-by-step explanation:

Answer:

0.5

Step-by-step explanation:

Grocery store scales are occasionally checked by inspection agencies for their accuracy in reporting the weights of purchased merchandise. Scales are allowed to operate as long as the percent error of their reported weights is within 0.5% of the actual weight measured. If you wanted to purchase 15.0 pounds of flour, what range of weights is the scale allowed to report in order to be compliant with local inspection agency regulations.

Answers

Answer:

The range of weights in the scale allowed to report in order to be compliant with local inspection agency regulations is between 14.925 pounds and 15.075 pounds.

Step-by-step explanation:

The weights should be within 0.5% of the actual weight measured.

15.0 pounds

0.005*15 = 0.075

Tolerance of 0.075 pounds

15 - 0.075 = 14.925 pounds

15 + 0.075 = 15.075 pounds

The range of weights in the scale allowed to report in order to be compliant with local inspection agency regulations is between 14.925 pounds and 15.075 pounds.

Simplify: (6q^3)^2
And tell me step by step

Answers

Answer:

36q^6

Step-by-step explanation:

First, use the distributive property and so you would have 6²q^6. Then you would solve 6² which is 36. Lastly, the answer will be 36q^6. Explaining is my weakness and I tried to help.

What's the area of the trapezoid?

Answers

Answer:

Mark brainliest please if i am correct one more brainliest please

Step-by-step explanation:

A=a+b

2h=15+25

2·5=100

Answer:

51.2

Step-by-step explanation:

plz mark me as brainliest

Can someone help me out

Answers

Answer:

1) -6/-10=3/5

2) -27/10x75/18 = -2025/180 = -135/12 (or) -11 1/4 (or) -11.25

3) 7+8-9=6

4) Billions

5) No, because you can't take a negative number of classes

Step-by-step explanation:

1) -6/-10=3/5

2) -27/10x75/18 = -2025/180 = -135/12 (or) -11 1/4 (or) -11.25

3) 7+8-9=6

4) Billions

5) No, because you can't take a negative number of classes

The sum of two numbers is 54. The smaller number is 14 less than the larger number. What are the numbers?
Larger number:
Smaller number:

Answers

Answer:

larger number: 34

smaller number: 20

Step-by-step explanation:

54= y+y-14

54= 2y - 14

54+14 = 2y

68 = 2y

68/2 = 2y/2

34 = y, the larger number

y - 14 = 34-14 = 20 the smaller number

What is the multiplier for a decrease of 38%?

Answers

Answer:

Step-by-step explanation:

times .62

6 Which expression below has a coefficient of 3?
A. 5r?+ 9
B. 2x - 3
C. 2x2 + 3x - 6
D. 3
g++4

Answers

Answer: C.

Step-by-step explanation:

C. is the only one with a 3 right next to the x. In 3x, 3 would be the coefficient)

12 The length of each side of regular pentagon
ABCDE is represented by 3x + 1. Which
expression represents the perimeter of the
pentagon?
A. 3x + 5
B. 15x + 1
C. 18x + 6
D. 15x + 5

Answers

Answer:

the answer is number b 15x + 1

Another word for x-intercepts?

Answers

Answer:

X-intercepts are also called zeros, roots, solutions, or solution sets.

Another word for "x-intercepts" is "roots" or "zeros." These terms are commonly used in the context of mathematics, particularly when dealing with functions or equations.

X-intercepts, roots, or zeros of a function are the values of the independent variable (usually denoted as "x") for which the function evaluates to zero.

In other words, they are the points on the graph of the function where it intersects the x-axis, hence the name "x-intercepts."

Mathematically, for a function f(x), the x-intercepts are the solutions to the equation f(x) = 0.

Finding the x-intercepts of a function is essential in graphing, solving equations, and understanding the behavior of the function.

These points represent the locations where the function crosses or touches the x-axis, indicating where the dependent variable (usually denoted as "y") is equal to zero.

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