Answer:
14.4cm
Step-by-step explanation:
Let the 7th length be y
Mean of the length = sum of all the length/number of let
Mean of the length = 13cm
13 = (11.8 + 12.4 + 12.5 + 13.2 + 13.6 + 13.1 + y) /7
13 = (76.6 + y) /7
Cross multiply to express in linear form
13 x 7 = 76.6 + y
91 = 76.6 + y
Collect like terms
91 — 76.6 = y
y = 14.4cm
Therefore, the 7th length is 14.4cm
Answer:
hope it will help you.....
Answer: the fixed costs per month is $14400
Step-by-step explanation:
Total cost = fixed cost + variable cost.
The tennis equipment manufacturer, has variable costs of $0.60 per unit of product. In August, the volume of production was 27,000 units. This means that the total variable cost from producing 27000 units is
27000 × 0.6 = 16200
If the total production costs incurred were $30,600, then the fixed costs per month would be
30600 = fixed cost + 16200
Fixed cost = 30600 - 16200
Fixed cost = $14400
To solve this problem, we have to set up an equation. Let the variable x represent the number of books that Dimitrius had before last week.
x - 5 - 3 + 8 = 12
To begin simplifying this equation, lets combine terms on the left side of the equation.
x - 8 + 8 = 12
The -8 and +8 cancel each other out, leaving us with:
x=12
Therefore, Dimitrius had 12 books before last week.
Hope this helps! :)
Answer:
50
Step-by-step explanation:
12.5*4=50
