Answer:
Area 1 is the best option
Step-by-step explanation:
Given Data:
Area 1 = 0.75 dam square
Price = €11,620
Area 2 = 0.009 ha
at €193,500
Area 3 = 0.84a
at €68,900
Where ha ( hectare )
a ( area )
Solution
First we convert all areas to square meter ( m² )
Area 1 = 100 * 0.75 dam square
= 75m²
Cost of area 1/ square meter
= €11,620 / 75m²
= €154.93 / square meter
Area 2 = 0.009 ha * 10,000
= 90m²
Cost of area 2 / square meter
= €193,500 / 90m²
= €2,150 / square meter
Area 3 = 0.84a * 100
= 84m²
= Cost of area 3 / square meter
= €68,900 / 84m²
= €820.23 / square meter
To determine the total class the whole class spent, you just have to simply add the individual costs of the three books. Using parenthesis, the solution can be written in the following two ways:
($15 + $9) + $12 = $36
$15 + ($9 + $12) = $36
No matter where you put the parenthesis, the final answer doesn't change. This is because of the Commutative Property of Addition. The order does not matter.
Answer:
18
Step-by-step explanation:
steps shown below!
Answer:its about the exact answer the answer is 78.76
Step-by-step explanation:
I chose exact answer becase the answer is 78.76
The volume of a rectangular box is equal to the area of its base times the vertical height. Thus,
V = Ah = 80
Since the base is a square with side x, then the area is equal to x². Hence, we can express h in terms of x.
80 = x²h
h = 80/x²
Now, each lateral side of the rectangular box is in the shape of a rectangle with a length of h and a width of w. Hence, the equation for the total cost would be:
Total Cost = Cost per area of lower base + Cost per area of upper base + 4(Cost per area of lateral side)
Total Cost = 0.45x² + 0.28x² + 4(0.10h*x)
Total Cost = 0.73x² + 0.4hx
Since h = 80/x²,
Total Cost = 0.73x² + 0.4(80/x²)(x)
Total Cost ($) = 0.73x² +32/x
