Question

I suck at percentage. HELP!
Mandana is ordering new tile for her kitchen floor. The area of the floor is 114.7 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. 128 square feet
C. 139 square feet
D. 135 square feet

Answer 1

So she needs 100% of 114.7 plus another 15% of 114.7. That would be 115% of 114.7

Answer 2

? Im confused

Answer 3

Find 115% of 114.7

Answer 4

So...? divide

Answer 5

Do you know that in mathematics "of" means "times"?

Answer 6

Oh yeah sorry *Sweat drop* It means multiply

Answer 7

OHHHH! Its 139

Answer 8

so C right?

Answer 9

Its C

Answer 10

No. 120% is 137.6
115% is 131.9
So 135 is between those two

Answer 11

Ohhhh Okay

Answer 12

So D