Mathematics Middle School

the following linear system is to be solved using the elimination method. 5x + 7y=0 x+ 4y= -1 the first step would be to
A. add the equations
B. subtract the equations
C. multiply the first equations by 5
D. multiply the second equation by 5

Answers

Answer 1
The correct answer would be D Have a nice day

Related Questions

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa chose all that apply

Answers

Answer:

B,C

Step-by-step explanation:

b and c ................

what is 5.64 x 10⁴ on a calculator

Answers

Answer:

56400

Step-by-step explanation:

Plug it into a calculator.

or

5.64x10^4

10^4=10x10x10x10 which has 4 zeros which is 10,000

so move the decimal from 5.640000

4 places to make 54600

hope that helps :)

giving brainliest!!!!!!!!!!!!!!

Answers

Answer:

B!

Step-by-step explanation:

B! I thinkkk thats the answer

pls help it should be ez for u guys

Answers

It should be 22500cm3
22500 cm3. Is the answer

Complete the double number to line show percentages of $50?

Answers

Answer: $25-50% $37.50-75% $75-150%

Step-by-step explanation: I know this because I added $12.50 to the number.

Where are my fellow Bi Queens/Kings???<333

Answers

Hi! I am here! I need more letters lol but ya I am here

-7 - 6j = -5j + 53, what does j equal?

Answers

Answer:

Jasper

Step-by-step explanation:

Answer:

j= -60

Step-by-step explanation:

Move the termsCollect like terms, calculateChange the signs

Suppose you send about 12 text messages a day, and your older sister sends more text messages than you do. Together, you send a total of about 26 messages per day. About how many text messages does she send a day? Write an equation and solve for the unknown value. (2 points)

Answers

The answer is 14 you should do 26=12=14

Answer: 14

Step-by-step explanation: x=26-12

Greatest common factor(GCF) of 90 & 45

Answers

Answer:

the answer is 45 for 90 &45

Answer:

The GCF is 45

Step-by-step explanation:

Step 1:  Find the prime factorization of each number

Prime Factorization of 90:  2 * 3 * 3 * 5

Prime Factorization of 45:  3 * 3 * 5

Step 2:  Multiply the numbers that they have in common

Both numbers have 3, 3, and 5 in common.  

So we just multiply them:  3 * 3 * 5 = 45

Therefore, the GCF of 90 and 45 is:  45

Answer: The GCF is 45

5^b/5^a=5^7. what is the value of a and b

Answers

I dunno I’m not smart

Step-by-step explanation:

there you gojsjdjskksk

How much power is indicated by each example?

Answers

I would say 25 because the power to thre o’clock while I was at the park
Yes it is 25 the guy above is correct

Pls help and explain(if you can)

Answers

Answer:

$300 | 300 Dollars of United States

I can’t necessarily explain it but I believe it’s 40.99 I’m sorry if I’m incorrect. Hope this helped!!

Select answers from the drop-down menus to correctly complete the statements. A scale factor of _____ was applied to the first triangle to get the resulting image. This scale factor is _____ .

An isosceles triangle with a side length of 3.4. An arrow points to a smaller isosceles triangle with a side length of 1.7.

Answers

Answer: 1.46 and 1.8 is the answer

Step-by-step explanation:

Is 1 1/2 closer to 1 or 2?

Answers

Answer: 2

Step-by-step explanation: Since 11/2 is bigger than 1 whole it should be 2 or more. since 2 can go into 11 5.5 times.

If you look at it as a decimal it would be 1.5

If you round it you would round it to 2

the cost of 25 apples is rupees 200 . the cost of 29 oranges is half the price of 25 apples. Find the cost of oranges.

Answers

Half the price of 25 apples is 100
100/29=3.45 rupees per orange
25 Apples cost 200 rupees and 29 oranges cost half of what the apples cost witch means the oranges cost 100 rupees.I

Please answer and explain why.

Answers

0,3,5,7,8 because it would make it higher pls heart and good luck !

answer asap pleaseeee

Answers

Answer:

4!!

Step-by-step explanation:

please help me with this question

Answers

The answer is 17 this is calculator method

What is the approximate area of this figure?
A. 25 cm
B. 31 cm
C. 38 cm
D. 42 cm

Answers

Step-by-step explanation:

4*4=16 (area of the square)

4/4 *suare root of 4* 8²-4²=

=15.492 approximately

So the whole area will be approximately

31 cm²

So the anwer is B.31 .

−14x+2+7x=23 solve x=?

Answers

Answer:

x = -3

Step-by-step explanation:

Answer:

x = -3

Step-by-step explanation:

WILL MARK BRAINLIEST‼️
Click on image to see shapes.

Drawing 2 is a scale drawing of Drawing 1.

a. The scale factor from Drawing 1 to Drawing 2 is _______%.

b. The length of the bottom side of Drawing 2 is _____cm.

Answers

A is 2.5 B is 7.8 I did this on a quiz and got 100% hope it helps

given the equation y=5x-1 does the point A(-11,54) belong to this line?

Answers

No, because 5(-11)-1 is not equal to 54.

plz help with this question will mark brainlietss

Answers

Answer:

(2, 6)

Step-by-step explanation:

Help me please please help me

Answers

Answer:

9r2/83-81=2

Step-by-step explanation:

so for the top one on da left that should be 9 because only 9 nines can fit into 83 ya feel me. And 9x9 is 81 so put 81 under the 83 and 2 at the bottom. And im pretty sure for the top right one its 2 because 83 divided by 9 equals 9.2222222 repeated and the r stands for repeated so ur answer is 9 r 2

Hope this helps!

:)

the parts highlight in yellow are the numbers that were missing

NEED HELP PLEASE HURRY
After selling 15 lemonades,
Jessica made $5. After
selling 42 lemonades, she
made $18.50.
Graph the equation using each form (standard form, point-slope form, and slope-intercept form)

Answers

Answer:

its 65.5

Step-by-step explanation:

helpppppppppp meeee plzzzzzzz

Answers

Answer:

the answer is -64. letter B

help help help help help

Answers

dont press on the link, its. asc

If the blueprint has a scale of 1 inch = 36 feet. Then the foyer would be
____ feet by _____?
20 points!

Answers

Answer:

27 feet by 9 feet

Step-by-step explanation

Please help meh i really need help

Answers

Answer  B is 56 thats all i know

Step-by-step explanation:

part a) scale factor = dividing by two

part b) 5.5 feet

Zach's trunk has a volume of 12 cm3.

How many 1 cm3 cubes will fit in it?
pls tell me how you got ur answer ;-;

Answers

Answer:

5^3

Step-by-step explanation:

This section introduces the idea of volume by counting up how many 1 cm cubes there are in a solid. We want to find the volume of this solid: We can see that this solid is made up of five 1 cm cubes like the one above. The volume of the solid is 5 cm³

12 because we know that it’s volume is 12 and volume is how many of whatever item fit in it
Other Questions
Part 1: Identify key features and graph a parabola from standard form.Answer the following questions to determine the key features of the parabola based on theequation shown, and then graph it12(x + 3) = (y-2)^2a) What is the axis of symmetry of the parabola? Explain how to determine this from the equation (1point)b) What is the vertex of the parabola? (1 point)c) What is the focus of the parabola? (2 points)d) What is the directrix of the parabola? (2 points)e) Sketch a graph of the parabola and label the vertex,focus, directrix, and axis of symmetry (4 points) Find the sale price of a $45 item after a 20% discount. Someone please help! The picture below shows a model of the human digestive tract.Which of the following best describes the purpose of this model?to show how organs in the digestive tract are compressed by contracting musclesto show the parts of the digestive tract without having to use real organsABto show how microscopic molecules flow through the digestive tractDto show the function of one organ in the digestive tract in isolation Which graph represents the function g(x) = 3/(x+2) -4? Which issue is addressed in the Bill of Rights?a. slaveryb. voting agec. the right to bear armsd. the direct election of Senators 2.3 Discussion: E-cigarettesGraded DiscussionDiscussion TopicNo Response(s)The discussion is where you discuss a specific health topic with the rest of the class.Read through the topic thoroughly, then post your thoughts on the appropriate discussionboard. Write at least one well-developed paragraph. As this is a discussion, don't forget torespond to at least two other students. Please be courteous and use proper netiquette.NewDiscussion 2.3 E-cigarettesBe the first to resE-cigarettes are becoming a popular alternative to smoking. Do you feel that E-cigarettesshould be subject to the same laws and restrictions as regular cigarettes? Why or whynot?Exit Graded Discussion Given 4y2 + x 32y + 68 > 0, which ordered pair is part of the solution set? (3, 5.7) (5.9, 4) (8, 5) (13, 3) What is the value of x when -8 x - (8x) = -48? heyy could you help me out with this question I have been stuck in this question?? explain how to solve the compound dependent event question. Joe pulls a marble from a bag without replacing it and then pulls another marble from a bag. There are 3 green, 5 red, and 2 blue. What is the probability that he pulls a red out of the bag and then a green? (explain and determine the answer) Can anyone tell me what the answer is for 4097 + 754 + 3188? Melinda kept a record of her spending for the week. She spent $25 to put gas in the car, bought a new shirt for a total of $22.38, played putt-putt golf with some friends that cost $6.95 and paid $38.71 for a few groceries. What was the total of Melindas expenses for the week?a.$68.24b.$86.09c.$91.94d.$93.04 Misha and Nora want to buy season passes for a ski lift but neither of them has the $225 needed to purchase apass. Nora decides to get a job that pays $6.25 per hour. SHe has nothing saved right now but she can work fourhours each week. Misha already has $80 and plans to save $15 of her weekly allowance. Who will be able topurchase a pass first? Show all your work and explain your reasoning. decribe Vietnamization Lowest of low tides occur approximately how often? Determining a Better ChoiceLast year, Ron had made an 18% percent error when hebought 168 notebooks and customers needed 200. Thisyear, he made a 24% error when he bought 310notebooks and sold only 250. Compare the percent errorsfor the two years and determine which year Ron made abetter estimate.I Can somebody please help me !!!!!!!!!47$4& The point (0,0) on a coordinate grid is called First, think of the color of the clouds. Next, think of the color of snow. Now, think of the color of a bright full moon. Now answer quickly what do cows drink? Find it ! Find the perimeter