Answer:
b=(13/4, -27/4, -4)
Step-by-step explanation:
A.x=b
x=(a, b, c)
a - b + 2c = 2
3a + b + 0 = 3
0 + 0 + c = -4
solving this system
c=-4
a-b=10, 3a+b=3
a=10+b, 3(10+b)+b=3
b=-27/4
a=10-27/4
a=13/4
Answer:
15
Step-by-step explanation:
I beleive you just count the dots thats what i did
Answer:
1120 grams
Step-by-step explanation:
The amount of sea water is directly proportional to the amount of salt in the water.
Let the amount of sea water be W and the amount of salt be S.
This means that:
W α S
=> W = kS
where k = constant of proportionality
2 liters of sea water contain 70 grams of salt Therefore:
2 = k * 70
k = 2 / 70 = 1/35
Therefore, for 32 liters of sea water:
32 = 1/35 * S
S = 35 * 32
S = 1120 grams
There are 1120 grams of salt in 32 liters of water.
Answer:
Step-by-step explanation:
Your revenue should be the price demand function * the price:
(x) 350 - 2x =
R(X) = 350x - 
your profit function should be the
Revenue - cost
350x - - 14204 -4x
- + 346x - 14204
b.e.p is where R=0
- + 346x - 14204 =0
Factored: f(x) = -2(x - 106)(x - 67)
bep = 67
