Since 5 of the 8 students are boys, the fraction would be 5/8. The fraction would roughly be around 63%
152640 grams per day
10^2 is 100
4.5 x 100= 450 grams per person per day
3.2 x 106=339.2
339.2 x 450= 152640
Cosθ is 3/5 because the cosine is found from the adjacent side of the triangle being divided by the hypotenuse. The sine is found by putting the opposite side from θ over the hypotenuse. If you draw this triangle out, the side across from θ would be 4 and the hypotenuse 5. In order to find the opposite side, you could either solve with the pythagorean theorem (a^2+b^2= c^2) or you could remember the properties of a triangle, therefore the final side is 3. You then put the opposite, 3, over the hypotenuse,5, in order to get 3/5 for the cosθ.
P= perimeter. x= # of inches. 4=number of sides in a square
P= 4x
so, P= 13.4 x 4. Therefore, the perimeter is 53.6 inches.