Question

A bank is getting a new marble floor that is green and white. The width of the floor is 88 feet. A white marble triangle will extend 1010 feet into the area. White marble costs $9.50$9.50 per square foot. How much will the white marble section cost?

Answer 1

Cost C = $380

The white marble section will cost $380

Completed question:

A bank is getting a new marble floor that is green and white. The width of the floor is 8 feet. A white marble triangle will extend 10 feet into the area. White marble costs $9.50 per square foot. How much will the white marble section cost?

Explanation:

The area of a triangle can be written as;

Area A = bh/2

Where;

b = base width

h = height

Given;

b = 8 ft

h = 10ft

Substituting the values;

A = 8 × 10/2

A = 40 ft^2

Cost of white marble;

Cost C = Area × cost per square foot

C = 40 × $9.50

Cost C = $380