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
son4ous [18]
3 years ago
10

PLEASE HELP!!! Use addition to solve the linear system of equations. Include all of your work in your final answer. 2x + y = 5,

3x + 2y = 4
Mathematics
1 answer:
Arturiano [62]3 years ago
4 0
I: 2x+y=5
II:3x+2y=4

start by eliminating y

-2*I: -4x-2y=-10
II: 3x+2y=4

add both equations together

-2*I+II: -4x-2y+3x+2y=-10+4
-1x=-6
x=6

insert x=6 into I:
2*6+y=5
y=5-12
y=-7

so the solution is x=6, y=-7
You might be interested in
If angle bisector EG is drawn find angle EGF
Gnesinka [82]

Answer:

90°

Step-by-step explanation:

because by bisecting the angle, you are going through the centre in this triangle. Splitting to triangle in half gives two right-angled triangles :)

sorry for bad drawing

6 0
3 years ago
Solve for r.<br> -13 = r/9 +8
love history [14]
R/9 = -21
Multiply by 9
r = -189
4 0
2 years ago
Read 2 more answers
A twelve-sided die with sides labeled 1 through 12 will be rolled once. Each number is equally likely to be rolled.
kykrilka [37]

Answer:

1/6

..................

6 0
3 years ago
180 lb 12 oz - 79.3 kg = ___________ kg
Brrunno [24]

Answer:

180lb\ 12 oz - 79.3kg = 2.8kg

Step-by-step explanation:

Given

180\ lb 12\ oz - 79.3kg

Required

Solve

First, convert 180lb to kg

1lb \to 0.454kg

180lb \to 180 *0.454kg

180lb \to 81.7kg -- to 1dp

Next, convert 12oz to kg

1oz \to 0.03kg

12oz \to 12 * 0.03kg

12oz \to 0.4kg --- to 1 dp

So, the expression becomes:

180\ lb 12\ oz - 79.3kg

81.7kg + 0.4kg - 79.3kg

= 2.8kg

Hence:

180lb\ 12 oz - 79.3kg = 2.8kg

3 0
3 years ago
The swamp middle school basketball team purchased new equipment and uniforms. The total cost of equipment was $245 and each unif
Liula [17]
25 because $518 ( their total ) divided by $21 ( the amount for EACH uniform) is 24.6 which isn’t possible so round it to 25
7 0
3 years ago
Read 2 more answers
Other questions:
  • Emergency!!!! Please help Geometry
    5·2 answers
  • What do I need to do for the second question???
    7·1 answer
  • A survey found that 25.3% of the residents in the neighborhood hire gardeners. Find the probability that someone in the neighbor
    5·2 answers
  • Angle A is in standard position and terminates in quadrant IV. If sec(A) = 4/3 , complete the steps to find cot(A).  Use the ide
    8·2 answers
  • Estimate by rounding 642÷83
    12·1 answer
  • Town A currently has 10,000 people in the population is growing by 1000 people per year. Town B currently has 9000 people in the
    14·1 answer
  • What is 5 minus 1/5 ?
    8·2 answers
  • What’s answer I needed help please
    12·1 answer
  • Which represents the polynomial below written in standard form?
    6·2 answers
  • Which is equivalent to 5 × 9 × 8?<br><br> 72 × 8<br><br> 45 × 72<br><br> 45 × 9<br><br> 5 × 72
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!