All categories

3 years ago

What is the solution to the system of equations y=-3×-2 5×+2y=15

Mathematics

2 answers:

hichkok12 [17]3 years ago

8 0

Answer:

x= 19/11

y=35/11

Step-by-step explanation:

Anna007 [38]3 years ago

6 0

Answer: x = - 19

y = 55

Step-by-step explanation:

y = - 3x - 2 (1)

5x + 2y = 15 (2)

substitute y = - 3x - 2 into equation (2)

equation (2) becomes

5x + 2 (-3x - 2) = 15

5x + ( - 6x - 4) = 15

opening the bracket

5x - 6x - 4 = 15

collecting like terms

5x - 6x = 15 + 4

-x = 19

x = - 19

substituting x = - 19 into equation 1

y = - 3x - 2

y = - 3 (-19) - 2

y = 57- 2

y = 55

You might be interested in

What is #5 I don’t know the answer.

denpristay [2]

If the axis of symmetry is x=-1, the vertex will have x-coordinate -1.

The point (0, 5) cannot be the vertex. The friend is not correct.

_____

If the point (1, 5) is on the graph so is the image of that point when it is reflected across the axis of symmetry. That image point is (-3, 5). A parabola that goes through points (1, 5) and (-3, 5) will not go through point (0, 5).

4 0

3 years ago

Find the midpoint of (-5,12) and (3,-6)

exis [7]

Answer:

mid point: (4,5)

hope that helps :)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What is 'Five less than 25' in numerical expression?

saveliy_v [14]

Answer:

5 < 25

in numerical expression

7 0

2 years ago

Read 2 more answers

Sam takes x minutes yo walk from home to library and 5 minutes more to walk from the library to school than fron home to the lib

LuckyWell [14K]

Answer:

$2x+5\ minutes$

Step-by-step explanation:

Given:

Sam takes x minutes yo walk from home to library.

And takes 5 minutes more to walk from the library to school than from home to the library.

Express the total time taken for Sam to walk from home to school via the library in terms of x.

Solution:

Time taken by Sam to walk from home to library = $x\ minutes$

Time taken by Sam to walk from library to school = $x+5\ minutes$

Total time taken by Sam to walk from home to school via the library = Time taken to walk from home to library + Time taken to walk from library to school

Total time taken = $x+x+5=2x+5$