X= 7
This is because of you plug in 7 for x into the equation it will give you 28-10 which is 18.
You could write it as an answer so 12. Or as a decimal so .75x16.
X equals to x = 1 - <span>√5</span>
Answer:
45 gallons
Step-by-step explanation:
1 hour = 3 gallons
2 hours = 6 gallons
3 hours = 9 gallons
4 hours = 12 gallons
5 hours = 15 gallons
10 hours = 30 gallons
15 hours = 45 gallons