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Anarel [89]
2 years ago
12

What is the solution of the system of linear equations below?

Mathematics
2 answers:
AlladinOne [14]2 years ago
7 0

Answer: The answer C i.e. no solution is the right answer

Step-by-step explanation:

Given  system of equations:

2x-6y=12 ............[1]

-x+3y=-2 ...............[2]

When we multiply the second equation by 2

we get

-2x+6y=-4

Multiplying both sides by -1

2x-6y=4 ..........[3]

On comparing [1] and [3]

we see that their coefficients of variables are same but the value

on the other side is different

which is not possible for a equation

Hence the system has no solution

shutvik [7]2 years ago
4 0

Answer:

No solution

Step-by-step explanation:


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The high school has 26 teachers and 546 students. What is the ratio of teachers to students?
skelet666 [1.2K]

Answer:

1:21

Step-by-step explanation:

Easiest trick way to do this is do 26/546 on your calculator (if you got a scientific one) this would simplify this to its lowest fraction which can be converted into a ratio in this case the ratio of teachers to students is 1:21

8 0
3 years ago
Beth left school driving toward the lake one hour before tim. tim drove in the opposite direction going 6 mph slower than beth f
m_a_m_a [10]

Beth's speed was 60 mph.

<h3>What is speed?</h3>
  • The speed (commonly referred to as v) of an object in everyday use and kinematics is the magnitude of the change in its position over time or the magnitude of the change in its position per unit of time; it is thus a scalar quantity.
  • The distance traveled by an object in a time interval is divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero.
  • Velocity is not the same as speed.

To find what was Beth's speed:

Beth's data:

  • time = 2 hrs; rate = r mph; distance = r×t = 2r miles

Tim's data:

  • time = 1 hr; rate = r-6 mph; distance = r-6 miles

Equation:

  • distance + distance = 174 miles

So,

  • 2r + r - 6 = 174
  • 3r - 6 = 174
  • 3r = 180
  • r = 60 mph (Beth's rate)
  • r-6 = 54 mph (Tims's rate)

Therefore, Beth's speed was 60 mph.

Know more about speed here:

brainly.com/question/4931057

#SPJ4

3 0
1 year ago
How can I solve this problem?
HACTEHA [7]

Answer:

25*pi or

78.5 square units.

Step-by-step explanation:

If there was no shaded area, the area of the circle would be pi * r^2

r = 10

Area = pi * 10^2

Area = 100 * pi

Since there is a shaded area, the shaded part looks to be 1/4 of the whole. There's no indication of what it actually is, but 1/4 should be close enough.

Area_shade = 1/4 (100*pi)

Area_shade = 25 * pi

That's one answer.

Another is 25 * 3.14 = 78.5 square units

7 0
3 years ago
I need help with all three please help!
denis-greek [22]

Answer:

c

a

b

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help!!!!!!!!!!!!!!!
Nuetrik [128]

Answer:

5 and 7.

Step-by-step explanation:

Supplementary angles are angles that have a sum of 180°.

130° + 50° = 180°

120° + 60° = 180°

4 0
2 years ago
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