1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RideAnS [48]
3 years ago
7

You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed? 3x-2y=7 equati

on 1 3x+4y=17 equation 2
Mathematics
2 answers:
anygoal [31]3 years ago
7 0

Answer:

gfg hon do sun dry radio island km km rodeo

svetlana [45]3 years ago
5 0

Answer:

x = 31/9 and y = 5/3

Step-by-step explanation:

It is given that,

3x - 2y = 7  -----(1)

3x + 4y = 17 ----(2)

<u>To find the solution by elimination method</u>

Step 1: Subtract eq(2) from eq(1)

3x - 2y = 7  -----(1)

<u> 3x + 4y = 17 </u>----(2)

0  - 6y = -10

6y = 10

y = 10/6 = 5/3

Step 2: Substitute the value of y in eq (1)

  3x - 2y = 7  -----(1)

  3x  - 2*(5/3) = 7

  3x = 7 + 10/3

  3x = 31/3

   x = 31/9

Therefore x = 31/9 and y = 5/3

You might be interested in
Create and solve a word problem that involves both Revenue and Cost. Your problem should include Break-Even and graphs of both t
umka2103 [35]

Answer:

HOLA BB COM O ESTAS DIME QUE TE AYUDO BB

Step-by-step explanation:

7 0
3 years ago
Barney &amp; Noblet customers can choose to purchase a membership for $25 per year Members receive 10% off all store purchases
Law Incorporation [45]

Answer:

  1. $70
  2. y = 25 + 0.9x
  3. $250

Step-by-step explanation:

1. 10% of $50 is $5, so the purchases would come to $50 -5 = $45. Added to the $25 membership fee, the total cost for the year would be

  $45 +25 = $70

2. The member pays $25 even if no purchases are made. Then any purchases are 100% - 10% = 90% of the marked price. So, the total is ...

  y = 25 + 0.90x

3. $25 is 10% of $250, so that is the amount the member would have to purchase to break even on cost.

If you like, you can compare the cost without the membership (x) to the cost with the membership (25+.9x) and see where those costs are equal.

  x = 25 +0.9x . . . . . x is the spending level at which there is no advantage

  0.1x = 25 . . . . . . . . subtract 0.9x

  25/0.1 = x = 250 . . . divide by 0.1

4 0
3 years ago
Answer number 5 click image.
natita [175]
That makes 55200*0.62=34224 people.
So 34224 people voted.
3 0
3 years ago
Read 2 more answers
15% of amount = 112.79
Mazyrski [523]
To find the original amount, you divide the product by the percentage. 

112.79 / 0.15 ≈ 751.933 (the 3's repeat infinitely). 

To check your answer, multiply 751.933 by 0.15. 
751.933 * 0.15 = 112.78995 ≈ 112.79
4 0
3 years ago
Read 2 more answers
Liana can see that the measure of Angle L and Angle M form a straight line. Since Liana knows that a straight line has an angle
cricket20 [7]

Answer:

150 degrees

Step-by-step explanation:

Let's start off by looking at what we are working with in this specific problem:

We can see that we are looking at 2 angles, angle L and angle M, that add up to a total of 180 degrees (aka a straight line)

Now that we know that, we also have to keep is mind that angle L + angle M = 180 degrees.

Now that we've got all of that out of the way, let's set up a simple algebraic equation:

angle L + angle M = 180

We also know that angle L is 30 degrees so let's add it into the equation we have just created:

30 + angle M = 180

We now know that 30 plus angle M (whatever it might be) is equal to 180 so in order to solve this problem we have to do some simple subtraction.

180 - 30 = angle M

Now we are left with:

150 degrees = angle M

4 0
3 years ago
Other questions:
  • When solving -1/8(x+35)=-7 what is the correct sequence of operations
    14·1 answer
  • What is the place value of 7<br>in 1,709?​
    8·1 answer
  • You need 1 1/4 cups sugar to make 20 cookies. To make 12 cookies, you will need how many cups of sugar?​
    10·2 answers
  • best rentals charges a daily fee plus a mileage fee for renting its cars. barney was charged $159 for 3 days and 300 miles, whil
    8·1 answer
  • What's y-3x+10 in standard form
    15·2 answers
  • Anyone know this ? picture shown please help
    13·1 answer
  • A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a
    7·1 answer
  • What is a formula for the nth term of the given sequence? -7, -12, -17...
    11·1 answer
  • What are the values of x and y?
    13·1 answer
  • Someone help! I’m not good at these problems!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!