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
NNADVOKAT [17]
2 years ago
15

Solve the system of equations x+y=-1 and 5x-7y=79 by combining the equations.

Mathematics
1 answer:
Leya [2.2K]2 years ago
6 0

9514 1404 393

Answer:

  (x, y) = (-6, -7)

Step-by-step explanation:

Multiply the first equation by 7 and add that to the second.

  7(x +y) +(5x -7y) = 7(-1) +(79)

  12x = 72

  x = 6

  y = -1 -x = -1 -6 = -7

The solution is (x, y) = (6, -7).

You might be interested in
Question 5<br> What is the area of the figure below?<br> 4 cm<br> 5 cm<br> 3 cm<br> 5 cm
kobusy [5.1K]

Answer:

10

Step-by-step explanation:

5 0
2 years ago
A bedroom is 15 ft long and 12 ft wide. How much will it cost to carpet the room if carpeting costs $22 per square yard?
Helga [31]

Answer:

$1,320

Step-by-step explanation:

To find the area of the bedroom, you must multiply the length and the width. 15 multiplied by 12 is 180, so the area of the bedroom is 180 square feet. There are three feet in a yard, so you must divide the area of the bedroom in feet by 3 in order to get the area of the bedroom in yards. 180 divided by 3 is 60, so the area of the bedroom is 60 square yards. In order to find how much it will cost to carpet the room, you must multiply the area of the bedroom in yards by how much carpeting costs per square yard. 60 multiplied by 22 is 1,320, so it will cost $1,320 in order to carpet the room.

4 0
2 years ago
Please and Thank You ​
sergejj [24]

Answer:

its a after about 17.5 billion years of watching shrek it is a

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
PLEASE PLEASE PLEASE HELP I WIL GIVE BRAINLIEST<br> ALSO PLS SHOW WORK
Tasya [4]
3 5/6 I took the test
5 0
3 years ago
Read 2 more answers
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
Leviafan [203]

\qquad\qquad\huge\underline{{\sf Answer}}

\textbf{Since it's a right angled Triangle we can }  \\ \textbf{ use Pythagoras theorem }

  • \sf{Cos (29°) = \dfrac{b}{c}}

  • \sf{Cos (29°) = \dfrac{b}{260}}

  • \sf{b= 260\cdot Cos (29°) }

  • \sf{b= 260\cdot 0.875 }

[ \textsf{Cos(29°)= 0.875} ]

  • \sf{b= 227.5 in }

\textsf{I hope you understood the procedure}

7 0
2 years ago
Other questions:
  • Please help me thank you I’ll cash app and brainliest. Answer the question correctly I’ll mark and cash app you I promise.
    8·2 answers
  • 3. Casey wants to do some baking. She has 6 cups of flour. One of the recipes she wants
    13·1 answer
  • What type of polygon is shown?
    11·2 answers
  • Factor the equation.<br><br> X2-15x+50=0
    11·2 answers
  • A watch is $99. There is a 40% discount and an 8% sales tax. What is the final price
    10·1 answer
  • Help me plssssssssssa
    6·2 answers
  • 54 + 38<br> -<br> = (52 +<br> D + 38<br> -<br> =52+ (<br> +38)<br> = 52 +<br> II
    14·1 answer
  • The elgebaric expression for 5y to the product of a and b.
    6·1 answer
  • The owners of a manufacturing company conducted a survey to determine the mean income of the customers who prefer the company’s
    5·2 answers
  • Evaluate 10 + 8÷4 - 12
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!