Explanation:
The starting system is:
{
0.4
x
−
0.1
y
=
2
0.2
x
+
0.5
y
=
1
If we multiply the second equation by
−
2
the coefficients of
x
will be opposite numbers:
{
0.4
x
−
0.1
y
=
2
−
0.4
x
−
y
=
−
2
Now we can add both sides of the equations to get an euation of 1 variable:
−
1.1
y
=
0
y
=
0
Now we have to substitute the calculated value of
y
to calculate
x
:
0.4
x
=
2
x
=
2
0.4
=
20
4
=
5
Answer:
The solution of this systemm is:
{
x= 5
Y=0
I hope that helps let me know if you have questions.
Answer: Graph B
Step-by-step explanation: The slope is steeper, indicating a greater rate of change.
Answer:
Step-by-step explanation:
The graph increases because it rises from point D to G.
Answer:
x=10
Step-by-step explanation:
2x-7=13
13+7=20
20/2=10
lets see if it works:
2(10)-7-13
20-7=13
it works! which means is 10
please mark me as brainliest!!<3
yes, A triangle with no equal sides is called a scalene triangle. ... An exterior angle of a triangle is equal to the sum of the two remote interior angles. True. A three sided regular polygon is called equilateral.