Answer:
0.25
liter of red paint, 0.25 liter of blue paint,
and 4.5 centiliters of white paint.
Step-by-step explanation:
X − 4y = 7
5x + 9y = 6
5x − 20y = 35 //1st * 5
5x + 9y = 6
5x +9y - 5x + 20y = 6 - 35 //2nd - 1st
5x + 9y = 6
29y=-29
5x=6-9y
y=-1 //1st : 29
5x=6-9*(-1)
y=-1
x=15:5 //2nd : 5
y=-1
x=3
check:
for x=3 and y=-1 there is:
x − 4y = 7 is 3 − 4*(-1) = 7 is 7=7 ok
5x + 9y = 6 is 15-9=6 is 6=6 ok
answer: (3;-1) represents the solution.
Answer:72v+9
Step-by-step explanation:
Apply the distributive property.
9
v
+
9
⋅
1
+
9
(
7
v
)
Multiply
9 by 1
.
9
v
+
9
+
9
(
7
v
)
Multiply
7 by 9
.
9
v
+
9
+
63
v
Add
9
v and 63
v
.
72
v
+
9
I hope this helps you.
Answer: -3
Step-by-step explanation: Explanation is below
:) Hopes this helps!
The lines are in the same plane but never intersect
