Take 7.5 and divide by 15.
7.5/15=.5
each guest will get .50 pound of meat.
Its a bc of the roation it made to a 90 degrees
Let x = small number
y=large numebr
x+y = 90
y-4x=15
substitute
we get:
x=21
y=90-21 = 69
3/4 of a cup plus 3/4 of a cup equals one and a half cups 3/4 cup plus 1/4 equals one cup and that leaves 1.3 cup so answer is one and a half cups