Answer:
16
Step-by-step explanation:
The area would be 441 m².
We first find the length of the given rectangle. We know area is length times width, that the area is 405 and the width is 15; this gives us:
405 = 15L
Divide both sides by 15:
405/15 = 15L/15
27 = L
Calculate the perimeter of the rectangle:
P = 2L + 2w = 2(27) + 2(15) = 84 m
The side of the square is 1/4 the perimeter of the rectangle we just found:
1/4(84) = 21 m
The area of a square is equal to its side length squared:
A = s² = 21² = 441 m²
In the afternoon Rosa read 13 fewer pages as compared to the number of pages read in the morning
So we subtract 13 from 57 to get the number of pages read in the afternoon.
That is the number of pages read is the afternoon
Therefore Rosa read 44 papers in the afternoon
Since they each ate 2/8 slices, in total they ate 6/8 slices, or 3/4.
Answer: 6/8 and 3/4.