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icang [17]
3 years ago
13

Solve each system by substitution method x+y=4 y=3x

Mathematics
1 answer:
valentina_108 [34]3 years ago
3 0
X+y=4 y=3x
x+3x=4
4x=4
divide both sides by 4
x=1
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Please help i’ll give brainliest if you give a correct answer and show your work
ollegr [7]
1. You take 0.002 and multiply this by 0.2, then get your answer of 0.0004.

it would look like that (0.2) . (0.002)=0.0004

2. An area of a rectangle: a . b

a= 0.4km
b=0.07 km

a . b= 0.4km . 0.07km= 0.028 km^2

HOPE THIS HELPED !!!!!
4 0
3 years ago
Please help help me please ASAP I am begging someone please <br> No links or files
NeTakaya

Answer:

1. b

2. e

3. a

4. f

5. g

Step-by-step explanation:

hope this helps

7 0
3 years ago
Which of the following is NOT equivalent to the expression a - (-b)
Montano1993 [528]

Answer:

b + (-a)

Step-by-step explanation:

8 0
3 years ago
GIVING BRAINLIEST+30 POINTS TO BEST ANSWER!! REMEMBER, FOLLOW DIRECTIONS!!
vitfil [10]

Answer:

Step-by-step explanation:

First, you would multiply 3x4 =12

next you would keep the denominator the same

last you would divide 8 by 12 10 get 1 3/8 for your answer

8 0
2 years ago
How to find area of parallelogram with coordinates of verticles?
ExtremeBDS [4]
You find a parallelogram area by this formula:
A=b\cdot h
Where b is its base and h, its height.
You get b's value applying distance between two points formula.
If A and B points form the base:
A(x_1,y_1)\;\;\;\;B(x_2,y_2) \\  \\ &#10;d_{AB}= \sqrt{(x_1-x_2)^2+(y_1-y_2)^2} =b

And h is the perpendicular distance between both bases.
You can visit next link to know further about it:
https://www.ck12.org/geometry/Distance-Between-Parallel-Lines/lesson/Distance-Between-Parallel-Lines
-GEOM/

And in attached picture you can find an example in progress you may want to finish.

5 0
4 years ago
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