Answer:
Step-by-step explanation:
You multiply by the reciprocal of 1/5 to make the equation 1/3*5/1 to get 5/3
if u dont know this *=multiplication
Answer:
125
Step-by-step explanation:
Since 20 × 5 =100
Then we do:
25×5 = 125
From (1), we get x = (8 - 3y) / 2 ––(3)
Substitute (3) into (2),
2 [(8 - 3y) / 2]² + 3y² = 110
(8 - 3y)² + 3y² = 220
15y² - 48y - 156 = 0
Therefore y = 5.2, then x = (8 - 3×5.2) / 2 = -3.8
OR y = -2, then x = [8 - 3×(-2)] / 2 = 7
The cordinates of A and B are (-3.8, 5.2) and (7, -2).