1/7 + 2/7 ??
Would this be too easy of an answer??
Answer:
write your question properly...
Answer:
x= 2
Step-by-step explanation:
3x – 5 = 1
Add 5 to each side
3x – 5+5 = 1+5
3x = 6
Divide by 3
3x/3 = 6/3
x= 2
ANSWER
The volume at the end of one week will be 22.32 liters.
EXPLANATION
If the balloon with a small leak loses 1% of its volume each day, then by the end of one week, it will lose 7℅ of its volume.
If the balloon originally contains 24 liters of gas, then this corresponds to 100%.
The volume at the end of one week will correspond to (100-7)%=93%
The volume at the end of one week is


Basically when the object hits the ground, f(t) is equal zero. So all you need to do is to solve the quadratic equation:
-5t^2 + 20t + 60 = 0
D = b^2 - 4ac = 20^2 - 4 × (-5) × 60 = 400 + 1200 = 1600
t1 = (-b + sqrt(D)) / 2a = (-20 + 40) / (-10) = -2
t2 = (-b - sqrt(D)) / 2a = (-20 - 40) / (-10) = 6
Since time can't be negative, our solution is t2.
So the object will hit the ground in 6 seconds.