Answer:
Step-by-step explanation:
im ok and im doing homework T-T wbu
Answer:
B (I think)
Step-by-step explanation:
I believe it's B, sorry if I'm wrong.
So the ^ symbol represents a square, or cube.
Using simple interest, it is found that the prices are as follows:
A. $10,200.
B. $12,614.58.
<h3>Simple Interest</h3>
Simple interest is used when there is a single compounding per time period.
The amount of money after t years in is modeled by:
In which:
- A(0) is the initial amount.
- r is the interest rate, as a decimal.
Item a:
$850 for 12 months, hence the yearly cost is:
P = 850 x 12 = $10,200.
Item b:
The total cost is found using simple interest with A(0) = 175000, t = 30, r = 0.03875, hence:
A(t) = A(0)(1 + rt)
A(30) = 175000[1 + 0.03875(30)]
A(30) = 378437.5.
The yearly cost is given by:
378437.5/30 = $12,614.58.
More can be learned about simple interest at brainly.com/question/25296782
Given - Dimensions of brick - 30cm ×10cm ×7 1/2 cm
Dimensions of wall - 30cm long 2m high and 3/4m thick
Find - Number of bricks
Solution - The volume of both brick and wall will be calculated by the formula Length*breadth*height.
Volume of one brick = 30*10*15/2
Volume of one brick = 30*10*7.5
Volume of one brick = 2250 cm³
Now calculating volume of wall. Firstly converting height and thickness into centimetres.
Height = 2 metres
Height = 200 centimetres.
Thickness = 3/4 metres
Thickness = 75 centimetres
Volume of wall = 30*75*200
Volume of wall = 4,50,000 cm³
Number of bricks required = 450000/2250
Number of bricks required = 200
Thus, 200 bricks will be required for given wall.