9 x 9 = 81
81 - 21 = 60
60 / -6
10
Answer:
Cost function = 40a + 500
Cost of 90 articles = $4,100
Step-by-step explanation:
The fixed cost is $500 and it will.not change regardless of production level.
The Variable cost is $40 and increases by every additional unit produced.
Assume the number of articles produced is a.
Cost function would be:
Total cost = Variable cost * Number of articles + Fixed cost
TC = 40a + 500
Using this, the cost of 90 articles is:
= 40 * 90 + 500
= $4,100
Answer:
x = 2, y = 7, z = 12
Step-by-step explanation:
x + y - z = -3 (1)
3x - y + z = 11 (2)
x - 4y + z = -14 (3)
add (1) and (2)
4x = 8 x = 2
add (1) and (3)
2x - 3y = -17
2(2) - 3y = -17
-3y = -17 - 4
-3y = -21
y = 7
Find z using any equation
x + y - z = -3
2 + 7 - z = -3
9 - z = -3
z = 12
Answer:
Step-by-step explanation:
<h3>i) simplify the complex fraction</h3>
<h3>ii) simplify the equation using cross multiplication</h3>
<h3>iii) swap the sides of the equation</h3>
<h3>iv) divide both sides of the equation by -6</h3>
<h3>v) simplify the fraction</h3>
Answer:
8:10 and 12: 15
Step-by-step explanation:
we have to multiply
