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stiks02 [169]
3 years ago
7

Consider the equation: -2x+5y=20

Mathematics
1 answer:
raketka [301]3 years ago
8 0

Answer:

- 2x + 5y = 20 \\ 5y = 2x + 20 \\ y =  \frac{2}{5} x + 4 \\ slope =  \frac{2}{5}  \\ y - intercept = 4

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Angle 1 and angle 2 are supplementary if m angle 1 is two times m angle 2 what are the measures of both angles
marissa [1.9K]

1 is 60

2 is 120

60*2 is 120

120+60=18:]

4 0
3 years ago
3x+3y=27<br> 3x-3y= -11<br> using elimination
Taya2010 [7]
3x + 3y = 27
3x - 3y = -11
------------------add
6x = 16
x = 16/6 which reduces to 8/3

3x + 3y = 27
3(8/3) + 3y = 27
8 + 3y = 27
3y = 27 - 8
3y = 19
y = 19/3

solution is (8/3, 19/3)
3 0
3 years ago
What is the value of c ?
boyakko [2]

Answer:

the value of c is 70

6 0
3 years ago
3&gt;1x&gt;-15 helllelelep
LuckyWell [14K]
Separate into two inequalities.

1x < 3
1x > -15
Solve for x.

x < 3
x > -15



7 0
4 years ago
What is the vector sum of (7,5) and (13,-5)
kolezko [41]

The vector sum of  two vectors as (7,5) and (13,-5) is given by v_1+v_2=20i+0j which can be written in point form as  (20,0) .

<u>Step-by-step explanation:</u>

Here we have , two vectors as (7,5) and (13,-5) Which are represented as :

v_1=7i+5j\\v_2=13i-5j

Addition of vector is as same as normal addition of integers as :

⇒ v_1+v_2=7i+5j+(13i-5j)

⇒ v_1+v_2=(7+13)i+(5-5)j

⇒ v_1+v_2=20i+0j ,

where i & j are the unit vectors in direction x-axis and y-axis respectively.

The vector sum of  two vectors as (7,5) and (13,-5) is given by v_1+v_2=20i+0j which can be written in point form as  (20,0) .

3 0
4 years ago
Read 2 more answers
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