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
kompoz [17]
3 years ago
6

Mr. Berger assigned the following system of equations to be solved for homework.

Mathematics
1 answer:
katovenus [111]3 years ago
5 0

Answer:

x = -3

Step-by-step explanation:

2x - 3y = -12 ------------------(i)

4x + y = -10 -------------------(ii)

Multiply the (ii) equation by 3 and then add the two equations. So, now y will be eliminated and you will get the value of x

(i)                   2x - 3y   = -12

(ii) * 3             <u>12x + 3y = -30</u>

                     14x         = - 42

x = -42/14

x = -3

You might be interested in
The degree of the term 2x^3 is<br> A. 2<br> B. x<br> C. 3<br> D. 2x
RSB [31]
Thw degree of 2x^3 is c. 3
3 0
3 years ago
Read 2 more answers
Find the most important variable in the problem.
lozanna [386]

Answer:

a

Step-by-step explanation:

4 0
2 years ago
The first four terms of an arithmetic sequence are 28, 20, 12, and 4. which term of the sequence is -36
Charra [1.4K]
For an arithmetic sequence, the nth term is the first term plus (n-1)×the differece
the first term is 28, the difference between each adjacent number is 8
so -36=(28)+8(n-1)
8(n-1)=64
n-1=8
n=9
the 9th term is -36
7 0
3 years ago
A car travelled 100 km with half the distance at 40 km/h and the other half at 80 km/h. Find the average speed of the car for th
Nana76 [90]
We must look at this question in steps
The first half of the journey is travelled at 40 km/h
Half of 100km is 50 km
Using the formula
Distance = Speed x Time
Speed = Distance / Time
Time = Distance / Speed
We can work out the time:

50km / 40km/h = 1.25 hours

Next we look at the second half of the journey
50km at 80km/h
50km / 80km/h = 0.625 hours

Add together both times to work out how long the entire journey took
1.25 + 0.625 = 1.875 hours

Using the Speed formula from before
Speed = 100km / 1.875 =
53 1/3 km/h or 53.3 recurring km/h
6 0
3 years ago
25 POINTS!
ludmilkaskok [199]
I would say it is <span>D- (-4,-5), for counterclockwise you turn towards the right. At 180 degrees it would be (4, -5) if you turn again you would get (-4,-5) hope this helps</span>
3 0
3 years ago
Other questions:
  • Which equation represents the graph?
    15·1 answer
  • HELP PLZ WILL GIVE BRAINLIEST
    11·2 answers
  • Elena drank 3 liters of water Yesterday. Jada drank 3/4 times as much water as Elena. Lin drank twice as much water as Jada.
    12·1 answer
  • The area of a sector of a circle of
    10·1 answer
  • What equations is equivalent to the following equation: x+3=12
    15·1 answer
  • Which side lengths form a right triangle?
    11·2 answers
  • A researcher wants to examine the effect of caffeine on sleep. She splits participants into two groups. The first group drinks c
    12·1 answer
  • Math number 8. <br><br> Find the value of x
    10·1 answer
  • Evaluate the expression when =a−3 and =b4 . 4 b - a
    9·1 answer
  • The truck left for delivery at 7:15 a.m. and
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!