Amount of decreased water = 3/10
Then, it would be 3/10 * 100 = 30%
So, your answer is 30%
Answer: a) C = 0.126x + 1.5
b) C = 2.382 c) approximately 179 units
Step-by-step explanation: profit P(x), total revenue R(x) and total cost (C) are related by the formulae below.
Profit = total revenue - total cost
P(x) = R(x) - C
From the question, P(x) = 0.084x - 1.5, R(x) = 0.21x.
Question a)
C = R(x) - P(x)
C = 0.21x - {0.084x - 1.5}
C = 0.21x - 0.084x + 1.5
C = 0.126x + 1.5
Question b)
If C = 0.126x + 1.5, then C at x = 7 units is gotten below as
C = 0.126(7) + 1.5
C = 0.882 + 1.5
C = 2.382.
Question c)
The break even point is the point where total revenue R(x) equals total cost C.
R(x) = 0.21x and C = 0.126x + 1.5
0.21x = 0.126x + 1.5
0.21x - 0.126x = 1.5
0.084x = 15
x = 15/ 0.084
x = 178.57 which is approximately 179 units (since quantity of units can't be decimal)
Lets x and y are the value of two numbers.
x + y = 16
x - y = 2.4
If x + y = 16 then x = 16 - y
Substitute x = 16 - y into x - y = 2.4
16 - y - y = 2.4
16 - 2y = 2.4
2y = 13.6
y = 6.8
x = 16 - y
x = 16 - 6.8
x = 9.2
Answer:
The value of two numbers are 9.2 and 6.8
Answer:
Option D is correct.
y =6
Step-by-step explanation:
Given the system of equation:
.......[1]
.......[2]
Multiply equation by 12 in [1] we get;
.......[3]
Multiply equation by 12 in [2] we get;
.......[4]
Multiply equation [3] by 5 we get;
.....[5]
Multiply equation [4] by 4 we get;
.....[6]
Subtract equation [6] from [5] to eliminate x we get;
Divide both sides by 69 we get;
x = -4
Substitute the value of x in [3] we get;
Subtract 36 from both sides we get;
Divide both sides by -8 we get;
y = 6
Therefore, the value of y is 6
Adams BMI is 20.1, no, his health is not at risk