90-20 leaves 70 for surfing. since surfing is 5 per hour, 70/5=14 hours she can surf.
The answer would be x^12yz^4/64
When one quantity increases and the other quantity increases as well, then that is a direct proportional relationship.
So the graph of this relationship is a direct proportional relationship.
Hope this helps.
Answer:
x = -1/3
Step-by-step explanation:
1/3x = 2/9 - 3/9
1/3x = -1/9
x = -1/3
Hope that helps!
