To begin solving this system of linear equations by elimination , you can add the equations . x + 4y = 38 5x - 4y = -30 8x = 8 This step works because of the distributive property B. multiplication property of equality C. commutative property D. addition property of equality

Answers

Answer 1

Answer: D. Addition property of equality

Step-by-step explanation:


Related Questions

A train travels 558 miles in 3 hours. At this rate, how far does the train travel
in 6 hours?
186 miles
O 1,674
0
1,116 miles
O 18 miles

Answers

Answer:

the answer is 1,674

Step-by-step explanation:

because if 3hours in 558 miles you multiply the 3hours in 558miles and the answer is 1,674

How do you write three hundred and sixty seven thousand, seven hundred and fifty two?

Answers

Answer:

367,752 would be the answer

Answer:

367 750

Step-by-step explanation:

u start and end up with the last number after the another

brainliest will be given if correct

Answers

Answer:

10

Step-by-step explanation:

im not sure if its correct but area is the area around the trapezoid and i added them

Which two answer choices below would give you a value of 3 times larger than (820 + 220)?

A) 3(820 + 220)
B) 3(820) + 2(220)
C) 2460 + 660
D) 820 x 220 x 3

Answers

A and d, because 820+220 is equal to 1,040, multiplied by 3 is 3120 and both a and d equal this

The expression that gives you a value of 3 times larger than (820 + 220) are:

3(820 + 220)

2460 + 660

Options A and C are the correct answer.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

(820 + 220)

= 1040

Now,

3 x 1040

= 3120

Now,

A)

3(820 + 220)

= 3 x 1040

= 3120

B)

3(820) + 2(220)

= 2460 + 440

= 2900

C)

2460 + 660

= 3120

D)

820 x 220 x 3

= 541200

Thus,

3(820 + 220) and 2460 + 660 give the value of 3 times larger than

(820 + 220).

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

Piper used 1/5 meter of ribbon to create a border around a triangle if each side of the triangle is the same length how much ribbon did Piper use for each side?

Answers

Answer:

[tex]\frac{1}{15}[/tex]

Step-by-step explanation:

as said in the question that the triangle has three equal sides. i.e. this is an equilateral triangle. So,

let us consider one side of the triangle to be x . and 3x( x+x+x) should be equal to 1/5

[tex]x+x+x = \frac{1}{5}\\3x=\frac{1}{5}\\x = \frac{1}{5} / 3\\x = \frac{1}{5} * \frac{1}{3}\\x = \frac{1}{15}[/tex]

State the slope and the y intercept: y = -5/2x

Answers

Answer:

slope: −5/2

y-intercept: (0,0)

Step-by-step explanation:

use the slope-intercept form y=mx+b to find the slope and y-intercept

Slope= -5/2
Y-intercept=(0,0)

which best describes the relationship between the successive terms in the sequence shown?
9, -1, -11, -21, ...

THe common difference is -10
The common difference is 10
The common ratio is -9
The common ratio is 9

Answers

Answer:

The answer is -10

Step-by-step explanation:

i got it right on edge

Answer:

A. The common difference is –10.  

Step-by-step explanation:

On egd 12/11/2020

Order the math fact completion rate for each student from the fastest to the slowest.

Answers

Answer:

could you put a picture of the work so i can anwser  this question

Step-by-step explanation:

A line passes through the point (0,-4) and has slope-5. What is the equation of the line in slope-intercept form?​

Answers

Y= -5x -4 because you would do slope intercept form and sub the y and x in for -4 and 0

Answer:

Y=-5x-4

Step-by-step explanation:

Subtract (8.5107)-(4.5109) 1) Determine the smallest power of 10. 2) Decrease the larger power of 10 until it matches the one found in Step 1. 3) Add or subtract the number factors and keep the power of 10. 4) Convert to scientific notation if needed.

Answers

Answer:

which answer best describes this picture

Which of the following ratios is closest to the golden ratio? a. 5/3
b. 7/5
c. 10/8
d. 14/11

Answers

Answer:

A 5/3

Step-by-step explanation:

The fraction closest to the golden ratio is  a. 5/3.

What is a golden ratio?

The golden ratio is a ratio between two numbers that approximate 1.618.

It is sometimes referred to as the golden number, the golden proportion, or the divine proportion.

It is closely related to the Fibonacci sequence, a set of numbers where each number is added to the previous one and is typically written as the Greek letter Ф.

From the given options,

5/3 = 1.66.

7/5 = 1.4.

10/8 = 1.25.

14/11 = 1.27.

So, the closest ratio is 1.6 which is 5/3.

learn more about the golden ratio here :

https://brainly.com/question/22904993

#SPJ2

find the midpoint of the line segment with the given endpoints (9, -8) (-10, -2)

Answers

Answer:

mid point=(-1/2,-5)

Step-by-step explanation:

can you please help me with this question ​

Answers

Answer:

-28

Step-by-step explanation:

-7 x 4 = -28 because 7 x 4 =28 then add negative so -28

Hope this helped ;) Have a good day :D

Which type of line and direction of shading does y > tell you?

Answers

9514 1404 393

Answer:

  Above the dashed line

Step-by-step explanation:

That y is greater than the values on the line tells you that the shading is above the line.

That the "equal to" case is not included tells you that the line is dashed.

is g(x)=2x-x^(3)+8 a polynomial function

Answers

Answer:

Yes, it is

Step-by-step explanation:

Yes, because all x terms have null or positive integer exponents:

g(x) = -x^3 + 2x^1 + 8^0.  

a small apple weighs 6.2 ounces and it’s divided into 4 equal parts how much does each piece weigh?

Answers

Weight of apple = 6.2 ounces
Total pieces = 4
Weight of 1 piece = 6.2 ÷ 4
= 1.55
Each piece weighs 1.55 ounces
Less than 2 pounds
1.55

The graph of the equation representing compound interest is that of:
A. linear function.
B. exponential function.
C. quadratic function.
D. None of the above

Answers

Answer:b

Step-by-step explanation:exponential function which means the value is is CONSTANTLY raised to the power

The graph the formula representing the compound interest will be exponential function.

What is graph?

In mathematics, and more specifically in graph theory, a graph is a structure amounting to a set of objects in which some pairs of the objects are in some sense "related".

Given is the equation representing compound interest.

The equation representing the compound interest is -

C = P( 1 + r/n )ⁿˣ

Where -

[P] is principle amount.

[r] is rate.

[x] is time.

The exponential function is , where [x] is a variable. Similarly, we can graph the formula representing the compound interest as shown in the figure attached. The graph will be exponential in nature.

Therefore, the graph the formula representing the compound interest will be exponential function.

To solve more questions on plotting graphs, visit the link below-

https://brainly.com/question/18422775

#SPJ2

A home has a triangular backyard. The second angle of the triangle is 4 degrees more than the first angle. The third angle is 26 degrees more than three times the first angle. Find the angles of the triangular yard.

Answers

Answer:

66.4, 70.4, 223.2

Step-by-step explanation:

make the equation x + (x+4)+ 3x+24=360

then it's 5x+28=360

subtract 28 on both sides

5x=332

then divide by 5 on both sides

x=66.4

then, just plug in the numbers

PLLLLLLLLLLLLLLLLLLLLLLLLLLLZZZZ HELP IVE BEEN STUCK ON THIS QUESTION

Answers

Answer:

180 degrees is the answer

Step-by-step explanation:

The rule of an 180⁰ degree rotation is:

(x,y) -> (-x,-y)

So the x and y coordinates change from negative to positive or from positive to negative

9514 1404 393

Answer:

  180°

Step-by-step explanation:

When you look at the coordinates, you see that each one has been negated. That is, the image point is in the quadrant opposite the one the preimage point is in.

Every point and its image on a rotated figure makes an angle with the center of rotation that is equal to the angle of rotation. When the preimage and image points are in opposite (not adjacent) quadrants, that angle is 180°.

______

Additional comment

It can be helpful to learn to recognize certain transformations. A rotation of 90° will swap the coordinates and negate one of them. A rotation of 180° negates both coordinates without swapping them.

A car travels 45 miles on one gallon of gas.
A. Write an algebraic expression to find the distance the car can travel using x gallons of gas.
B. The car uses 10 gallons of gas. How many miles does it travel?

Answers

Answer:

Your answer:

y=45x

(Y=miles driven)

(x=gas used)

Step-by-step explanation:

Help please!!! I need answers!!!

Answers

Answer:

a)

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

I know for sure.

12+84=96

12*1=12

12*7=84

THIS IS DUE IN 10 MINUTES I WILL AWARD BRAINLIEST
fill in the chart

Answers

percent row: 120%      0.03%            15%

Decimal row: 1.2          0.0003          0.15

Fraction row: 12/ 10      3/10000         3/20

Sometimes subtraction involves borrowing.

true or false

Answers

Answer:

true

Step-by-step explanation:

Answer:

True.

Step-by-step explanation:

You will need borrowing for situations like this; 11 - 09

To subtract 1 by 9, you need to borrow.

which rule best described the following pattern 5,6,15,16,25,26,35​

Answers

The pattern is increasing by 10 then a ding 1 to the next number. Hope this helps! :)

The number of bacteria at the beginning of an experiment was 30 and the bacteria grow at an hourly rate of 1.4 percent. Using the model given by () = 0e, estimate the number of bacteria, rounded to the nearest whole number after 20 hours.

Answers

Answer:

The estimated number of bacteria after 20 hours is 40.

Step-by-step explanation:

This is a case where a geometrical progression is reported, which is a particular case of exponential growth and is defined by the following formula:

[tex]n(t) = n_{o}\cdot \left(1+\frac{r}{100} \right)^{t}[/tex] (1)

Where:

[tex]n_{o}[/tex] - Initial number of bacteria, dimensionless.

[tex]r[/tex] - Increase growth of the experiment, expressed in percentage.

[tex]t[/tex] - Time, measured in hours.

[tex]n(t)[/tex] - Current number of bacteria, dimensionless.

If we know that [tex]n_{o} = 30[/tex], [tex]r = 1.4[/tex] and [tex]t = 20\,h[/tex], then the number of bacteria after 20 hours is:

[tex]n(t) = 30\cdot \left(1+\frac{1.4}{100} \right)^{20}[/tex]

[tex]n(t) \approx 39.616[/tex]

[tex]n(t) = 40[/tex]

The estimated number of bacteria after 20 hours is 40.

12a+c-b; a=1/3,c=5, and b=9

Answers

Answer:

Here we go in photo form

Answer: 3,635 Views.

Step-by-step explanation:

b+c=10 becomes b=10-c. c+a=12 becomes c=12-a ... an a: c+a =12 & a+b=8. Subtracting the latter from the former eliminates the “a”s, leaving c-b=4. ... What are the values of A, B, C, D, A+B=8, B-D=5, A*C=21, and C*D=9?

. Simplify the following expression by combining like terms:
3a + 6ab + 9ab + 3(a + ab)

Answers

Answer:

6a+18ab

I think is correct

Answer:

6a+18ab

Step-by-step explanation:

hope this helps

What are all the digits of pi​

Answers

that’s a lot of numbers lolll 3.14159265358979323846264338327950288419716939937510.... it goes on

Please answer attached have ask for help 3 days no help

Answers

Answer:

25 is 6

Step-by-step explanation:

sqrt of 4 is just 2 and then plus 4 gives you 6

Show Your Work!
Will Mark Brainliest!

Answers

Answer:

x= -4

Step-by-step explanation:

Other Questions
Which ordered pair makes both inequalities true?y > 2x + 3y < x 2On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (0, negative 2) and (2, 0). Everything to the right of the line is shaded. The second dashed line has a negative slope and goes through (0, 3) and (1, 1). Everything to the right of the line is shaded. (0,0)(0,1)(1,1)(3,0) Hello, I kinda need help on this. This is my last thing to do for the day. So pls help and ty, have a wonderful day. im giving out the rest of my points for this one bois- What is 120/160 in simplest form? i need big help thanks Is this a solution or an inequality? 5 - x < 8; x = -3 Answers for quiz on edge are:1. Which of the following would be the best answer for the question given in the audio?A) en el aula2. Where is this person most likely going?D) a la escuela3. Why is the speaker upset?D) He forgot to bring his homework home.4. What can't the student buy?C) computer5.What is Sara going to do after school?C) estudiar HELP ASAPPPWhat is 60% of 40? The ____ is the source of all energy in our atmosphere. a. Sun c. Moon b. water cycle d. Coriolis effect Analyze the cartoon in a few sentences Find the equation of the parabola with a focus at the point (2,5), and a directrix of y = 3. which event marked the "end of armed conflict between whites and native Americans?A. Battle of little bighorn(1876)B. Battle at wounded knee(1890)C. Dawes Act(1887)D. Geronimo's surrender(1886) What push factor had the greatest influence on the migration of thepeoples listed? - What is the difference between a play written in verse and one written in narrative prose? (05.03 MC)Read and choose the correct option to complete the sentence.Rosario wants to explore a city without a subway. She does not like to drive and prefers not to walk today. What can she do?Rosario puede ________.Question 3 options:tomar el metrotomar un avinrentar un autorentar un mototaxi HURRY PLEASEEEEA line has a slope of -3 and passes through the point (-3, 8) What is the equation of the line? HELP HELP HELP HELP RIGHT NOW HELPWhy Hitler and the Nazis wanted to take over Bavaria? June Corp. sells one product and uses a perpetual inventory system. The beginning inventory consisted of 100 units that cost $20 per unit. During the current month, the company purchased 580 units at $20 each. Sales during the month totaled 450 units for $43 each. What is the number of units in the ending inventory? In the "corrupt bargain, what did Clay gain by supporting Adams? a seat in Congress the vice presidency the position of secretary of statethe support of Jacksons voters Use geographic terms and tools to explain why ancient civilizations developed networks of highways, waterways, and other transportation linkages.What allowed the Incan army to travel most quickly throughout the empire?A. their special chariotsB. their fleet of shipsC. their network of roadsD. their use of canalsBest answer gets Brainliest Which is the graph of x298.6? ?95 6 97 98 9 100 101 102 10305 96 97 8 9 100 01 102 103||||-+95 6 7 8 9 100 100 10 103|||| + ++ +++95 6 7 8 9 100 101 102 103