samantha is buying carpet for her bedroom floor, which is a 15-foot-by-12-foot rectangle. if carpeting cost $1.2 per square fot, how much will it cost samantha to carpet her bedroom?
cost= area*cost/area= 15*12*1.20
huh? i don't get it
Multiply: 15 * 12 * 1.20 = ?
216???
in my books theres A.$68 B.$144 C.$180
D.$225
Either you've copied the problem wrong or the answer key is wrong.
The area of the carpet is 180 square feet. At $1.20 per square foot, it will cost her $216.
To find out how much it will cost Samantha to carpet her bedroom, we need to calculate the area of the bedroom floor in square feet, and then multiply that by the cost per square foot of the carpet.
The area of a rectangle can be calculated by multiplying its length by its width. In this case, the length is 15 feet and the width is 12 feet. So, the area of the bedroom floor is 15 feet * 12 feet = 180 square feet.
Now that we know the area of the bedroom floor is 180 square feet, we can calculate the cost of the carpet. The cost per square foot is given as $1.2.
To find the total cost, we multiply the area of the bedroom floor by the cost per square foot: 180 square feet * $1.2 per square foot = $216.
Therefore, it will cost Samantha $216 to carpet her bedroom.