Answer: x=45
Step-by-step explanation: math
Answer:
12.5 leters
Step-by-step explanation:
If you take the 4 liters she used to cover 50 doors,
a
False
y = -3× - 2
4 = -3(2) - 2
4 = -6 - 2
4 = -8
Since,
1)
Differentiating with respect to x,
2)
Differentiating w. r. t x,
3)
Differentiating w. r. t. x,
4)
Differentiating w. r. t. t,
5)
Differentiating w. r. t. p,
6)
7)
Differentiating w. r. t. y,
(-12,11)
x + 2y = 10
3x + 4y = 8
(-2)x + (-2)2y = (-2)10
-2x - 4y = -20
Add to eliminate:
x = -12
Substitute x to solve y:
(-12) + 2y = 10
-12 + 2y = 10
2y = 10 + 12
2y = 22
y = 22 ÷ 2
y = 11
Check:
(-12) + 2(11) = 10
-12 + 22 = 10
10 = 10