Extra points to the person who answer first mandana is ordering new tile for her kitchen floor. the area of the floor is 116.9 square feet, and she wants to order between 15% and 20% extra of the materials. which of the following is a reasonable amount of tile for mandana to order? a. 131 square feet b. 138 square feet c. 133 square feet d. 141 square feet

In order to know what is the reasonable amount of tile for Mandana to order, you have to divide the choices with the area of the floor and deduct with 1 and multiply by 100. You have to assess if the answer you will get will fall between 15% and 20% which is the goal of Mandana.

a.       131/116.9 = (1.1206 – 1) x 100 = 12.06%, this does not fall between 15% and 20%

b.      138/116.9 = (1.1805 – 1) x 100 = 18.05%, this fall between 15% and 20%

c.       133/116.9 = (1.1377 – 1) x 100 = 13.77%, this does not fall between 15% and 20%

d.      141/116.9 = (1.2062 – 1) x 100 = 20.62%, this does not fall between 15% and 20%

Therefore, the reasonable amount of tile for Madana to order that is between 15% and 20% extra of the materials is 138 square feet.

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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