Question 11-(3 marks available)
1 answer:
Answer: 1080
Determine the values of b1, b2, and b3, the sides of the triangular base. Also determine the value of h, the height of the triangular base and l, the length of the prism (the length between the bases).
The sides of the triangular base are:
b1 = 13 in.
b2 = 14 in.
b3 = 15 in.
The triangular base is a right triangle, and so the height is one of our sides. We will use
h = 12 in.
The length of the prism is
l = 20 in.
total surface area = bh + (b1+b2+b3)*l
bh = 12*20 = 240
l * (b1+b2+b3) = 20*(13 + 14+ 15) = 840
TSA = bh + l * (b1 + b2 + b3) = 240 + 840 = 1080
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Answer:
After using the offer the carpet would cost Ahmed $180.
Step-by-step explanation:
Given:
Cost of the carpet = $240
Discount percent = 25%
We need to find the cost of the carpet after discount.
Solution:
First we will find the Discount cost.
Now we know that;
Discount cost is equal to Discount percent multiplied by Cost of the carpet divided by 100.
framing in equation form we get;
Discount cost =
Now we will find the Cost of the carpet after discount.
Now we know that;
Cost of the carpet after discount is equal to Cost of the carpet minus Discount cost.
framing in equation form we get;
Cost of the carpet after discount =
Hence After using the offer the carpet would cost Ahmed $180.