Mrs. Williams is going to purchase a plastic cover for her outdoor fish pond. The area of the fish pond is 25 m2. However, she must purchase a cover that is 12% more than the pond area in order to cover the entire edges of the pond. The plastic cover costs $4.75 per square meter. About how much will Mrs. Williams spend for the plastic cover?
A
$300.00
B
$133.00
C
$118.75
D
$57.00
how is this b i don't know how to show explain my work for this one
25 * 1.12 * 4.75 = ?
12% of 25 is (12/100)*25=300/100=3, so add 3 to 25m^2 to get the total pond area. 25+3=28. Each square meter cost 4.75, so multiple it by 4.75 and you get 28*4.75=133, so it is B.
To calculate the cost of the plastic cover for Mrs. Williams' fish pond, we need to follow these steps:
Step 1: Find the total area of the fish pond with the edges included.
Since the given area of the fish pond is 25 m2, Mrs. Williams needs to purchase a cover that is 12% more than the pond area. So, we can calculate the total area by adding the extra 12% to the pond area as follows:
Total Area = Pond Area + (12% of Pond Area)
= 25 m2 + (12/100) * 25 m2
= 25 m2 + 3 m2
= 28 m2
Step 2: Calculate the cost of the plastic cover using the total area.
The plastic cover costs $4.75 per square meter, so we need to multiply the total area (28 m2) by the cost per square meter ($4.75) to find the total cost as follows:
Total Cost = Total Area * Cost per square meter
= 28 m2 * $4.75/m2
= $133.00
Therefore, Mrs. Williams will spend approximately $133.00 for the plastic cover.
So, the correct answer is option B: $133.00.