Answer:
r+p=-8
Step-by-step explanation:
5-p=r-3
5+3-p-r=0
8-p-r=0
r+p=-8
Answer:
15:10
Step-by-step explanation:
Method 1: 5 lots of 3:2 →5 × (3:2) = (5×3) : (5×2) = 15:10
Method 2: 3/2 × 1 → 3/2 ×5/5 = 3×5 2×5= 15:10
boys: 15
girls: 10
Answer:
1/9
Step-by-step explanation: