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
AleksandrR [38]
3 years ago
10

use the elimination method to solve the system of equations.choose the correct ordered pair. -3y=x-5 x+5y=7. ​

Mathematics
1 answer:
Paraphin [41]3 years ago
5 0

Answer:

<h2>B. (2, 1)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}-3y=x-5&\text{subtract x from both sides}\\x+5y=7\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-x-3y=-5\\x+5y=7\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad2y=2\qquad\text{divide both sides by 2}\\.\qquad\qquad y=1\\\\\text{Put the value of y to the second equation:}\\x+5(1)=7\\x+5=7\qquad\text{subtract 5 from both sides}\\x=2

You might be interested in
A city stadium has 7,128 seats. The city wants to add 1,694 seats to the stadium. The stadium will now hold blank seats.
Naya [18.7K]

Answer: idk i wanna know the answer too

Step-by-step explanation:

3 0
3 years ago
Which best represents the solution for the inequality-100 &gt; -5y
Ira Lisetskai [31]
Y > 20

Hope this helps! Message back for an explanation:)
8 0
3 years ago
Can someone help please? u dont have to show work so dont mind that
nexus9112 [7]

Answer:

Factor the numerator and denominator and cancel the common factors.

x/4+3/2 or 32/4  or Reduce the expression, if possible, by cancelling the common factors. 8 is your final answer

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
5 What is the perimeter? use 3,14
Lera25 [3.4K]

Answer:

I don't understand the instructions, but I'll answer the question in the picture.

The angle next to 52 is vertical to y, so,  90-52=y.

Thus, y=38

6 0
2 years ago
Simplify the expression
Molodets [167]

Answer:

8x^8/3 y^4 - The first option

Step-by-step explanation:

The first thing we need to do is the exponent outside the bracket and leave the 8 till last, because exponents always come before multiplying coefficients. When an term with an exponent is multiplied by another exponent outside a bracket, the exponents of both terms are multiplied by the exponent outside the bracket.

This means that the expression is now:

8(x^2*4/3 y^3*4/3)

First we can so the x term. The x term already has an exponent of 2, so the 2 is multiplied by the 4/3 exponent outside the bracket. 2*4/3 = 8/3, so the x term is now: x^8/3

The same happens to the y term: 3*4/3 simplifies to 4, so the y term is now y^4.

So now our expression is:

8(x^8/3 y^4)

Now the 8 outside the bracket simply multiplies on to the whole term so we finish with:

8x^8/3 y^4 - The first option.

Hope this helped!

7 0
3 years ago
Other questions:
  • A girl scout leader rented a bus for a trip to the museum. The bus company charged $275 plus $.35 for each mile traveled over 35
    5·1 answer
  • Mario was making cookies. He mixed 2 1/2 cups of flour, 1 1/4 cups of sugar and be 1/2 cup of brown sugar together in a bowl. Ho
    8·1 answer
  • Nelson decides to invest $1,000,000 in a period annuity that
    12·1 answer
  • 1.2.1
    8·1 answer
  • Can someone help with the picture please?
    13·1 answer
  • Convert the common fraction into decimal fraction <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B4%7D%20" id="TexForm
    7·2 answers
  • A. B. AB ≅ AC<br> C. D. CS ≅ ST
    9·1 answer
  • 10 points first person
    15·2 answers
  • PLEASE HELP 46 POINTS!!!
    12·1 answer
  • Which expressions are equivalent to 5+(-3)(6x-5)5+(−3)(6x−5)5, plus, left parenthesis, minus, 3, right parenthesis, left parenth
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!