Answer:
3
Step-by-step explanation:
3
Answer:
Total height lowered = 75m
No of times balloon lowered = 5
Height lowered in each lowering = Total height lowered / No of times balloon lowered
= 75 / 5
= 15 m
The number indicated that each time balloon is lowered by 15 m
Answer:

The value of r is 0.451
The percentage decrease is about 45.1%
Step-by-step explanation:
The given exponential function is 
Using the exponent rule, 

Now the value of 
Thus, we can rewrite the function as

Therefore, the function in form 

The value of r is 0.451
The percentage decrease is about 0.451 ×100 = 45.1%
So the first step to solving this problem is to distribute the {1}{4}
to what's inside the parenthesis. This means multiply {1}{4} by 4x and 15.
After that, this is what you should have.
{4x}{4} + {15}{4} = 24
This should be simplified
1x = 24 - {15}{4}
{15}{4} is equal to 3.75
x = 20.25
20.25 is equal to {81}{4}
I think this is how it done
My Grandfather helped me a little
He is an Engineer who codes aircrafts so he knows lots of math
Hope This Helps