Answer:
6 minutes
Step-by-step explanation:
- Set up the proportion as these two fractions equal to each other
9/3 = 18/x
2. Cross multiply so that 9*x=18*3
3. 9x=54, so now you divide 54 by 9
and this will give you
4. x= 6, so it will take 6 minutes to fill
up the 18 gallon pool
Hope this helped!
What do you need help with?
<span>2.66666667 !!!!!!!!!!!!!!!!!</span>
Given :
A skyrocket is launched from a 8-foot-high platform with an initial speed of 220 feet per second.
The polynomial -16t² + 220t + 8 gives the height in feet that the skyrocket will rise in t seconds.
To Find :
How high will the rocket rise if it has a 7-second fuse?
Solution :
Since, it is given that the rocket has a fuse time of 7 seconds.
Putting value of 7 sec in given equation, we get :
Height = -16×( 7 )² + 220×( 7 ) + 8
Height = 764 m
Therefore, height of rocket in 7 second fuse is 764 m.
