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
hram777 [196]
3 years ago
7

use the elimination method to solve the system of equations. choose the correct ordered pairs -x + y=-3 and 3x + 2y=9

Mathematics
1 answer:
Agata [3.3K]3 years ago
3 0
-x+y=-3, 3x+2y=9

1. multiply the first row by the second
-2x+2y=-6, 3x+2y=9

2. subtract the second row from the first row
-5x=-15

3. sole for x in the above equation
x=-15/-5
x=15/5
x=3

4. substitue x=3 into -2x+2y=-6
-2*3+2y=-6


5. solve for y in the above equation
-6+2y=-6
2y-6=-6
2y=0
y=0

6 therefore,
x=3 and y=0


Have a nice day :D
You might be interested in
5. Rory is playing a video game where each game lasts 13⁄4 hours. He wants to play for 9 hours today and this evening. How many
olga_2 [115]
He can play two games. 13/4=3.25
3.25*2=6.5
7 0
4 years ago
An isosceles trapezoid has base angles of 45° and bases of lengths 8 and 14. The area of the trapezoid is
tigry1 [53]
You forgot to add in your height to your question. To find your area you need to do 8 + 14 and get 22 then you nee to do the height divided by two. If you give me the height of the triangle I can tell you the area.
8 0
3 years ago
I need help my grade depends on your answer!!
Fynjy0 [20]

Answer:

Angle 4 and Angle 5 are congruent.

Step-by-step explanation:

5 0
3 years ago
One of the legs of a right triangle measures 15 cm and the other leg measures 10 cm.
katrin [286]

Answer:

the answerto this is 18.02.

3 0
3 years ago
The coordinate plane below represents a town. Points A through F are farms in the town.
Elena-2011 [213]
<span>To solve this, use the point - slope form formula
</span>Point D (-4, 2) and Point E (-1, 5)
<span>y - y1 = [(y2 - y1)/(x2 - x1)](x - x1)
y - 2 = [(5 - 2/-1 -(-4))](x + 4)
y - 2 = x + 4
y = x + 6

To answer this, input the values of points D or E into the equation and make sure that they answer the equation in part A.
</span>y = x + 6
2 = -4 + 6 = -2 so it satisfies the solution
8 0
3 years ago
Other questions:
  • Mia has 12 marbles, alex has 9 marbles, and micheal has 51 marbles. use the gcf and the distributive property to find the total
    15·1 answer
  • Ivan's has 3/4 pound of hamburger meat. She makes 3 hamburgers patties.each patty weighs the same amount.hiw much dies each hamb
    13·2 answers
  • The total amount of money, m, earned by washing cars at a school fundraiser is proportional to the number of cars, c, washed at
    12·1 answer
  • The weekly salary of a store manager includes a $30 bonus plus the number of hours the manager works multiplied by the managers
    13·1 answer
  • Evaluate the expression for the given values.
    13·2 answers
  • There are 928 possible words for a spelling bee. If Levi studies 40 words per day, how long will he take to study all of the wor
    13·1 answer
  • When a Figure is Translated reflected or rotated whats The Same about the original figure and its image
    9·1 answer
  • Please hurry!!!!!!
    8·2 answers
  • What is the value of X in the equation x²-6x+9=25
    8·1 answer
  • PLS HELP ME PLS PLS !
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!