Answer:
Step-by-step explanation:
Let x be the adult weight of puppy B
75% of x =8 pounds
LOOK AT PIC AT THE BOTTOM
4+2x = x (x = student in smaller group)
4 + 2x + x = 28 (total # of students)
4+ 3x = 28
3x = 24
x = 8
8 students in the smaller group
4 + 2(8) = 20 students in the larger group
1/9 - 5/6
Convert both of them into denominators of 18.
2/18 - 15/18
Subtract the numerators and keep the denominator:
-13/18