Answer:
2x - (3 + 4x) = 12
x = -7.5
y = -27
Step-by-step explanation:
-4x + y = 3 (1)
2x - y = 12 (2)
From (1)
y = 3 + 4x
Substitute y = 3 + 4x into (2)
2x - y = 12 (2)
2x - (3 + 4x) = 12
2x - 3 - 4x = 12
2x - 4x = 12 + 3
-2x = 15
x = 15/-2
x = -7.5
Substitute x = -7.5 into (2)
2x - y = 12 (2)
2(-7.5) - y = 12
-15 - y = 12
-y = 12 + 15
- y = 27
y = -27
Answer:
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I I I
√10 √13 √17
Step-by-step explanation:
√10 is the smallest value, √13 is the middle value, and √17 is the largest value.
Ok, l = lewa's backpack and a= alai's. :)
1/2a -5 = l.
so to solve,
1/2 (36) - 5 = l.
18 - 5 = l.
13 = l.
so Lewa's backpack weighs 13 pounds. Hope it helps!
Answer:
dV(t)/dt = kV(t)
Step-by-step explanation:
Since the rate of change of the car’s value in dollars per year dV(t)/dt is proportional to the car’s value V(t), ten
dV(t)/dt ∝ V(t)
dV(t)/dt = kV(t)
Answer:
if the signs are the sama, add the numbers
