Answer:
7
Step-by-step explanation:
The key to understanding the question is to keep the details at the fore.
Percentage = 25%
Amount = 230
Our answer to the estimation is given by the formula:
Step-by-step explanation:
There are 10 + 20 = 30 total students in the class.
Total marks for the class = 60 * 30 = 1800.
Total marks for the girls = 54 * 20 = 1080.
=> Total marks for the boys = 1800 - 1080 = 720.
Mean mark for the boys = 720 / 10 = 72.
Answer:
The equation for height is given as
S= -16t2 +V 0 t
Also given
V0 = 128 ft/s
Substituting 192 = -16t2 +128t
Which is simplified as
t2 -8t +12 =0
Which gives t = -2 sec and t= 6 sec ( -2 can be ignored)
Using S = -16 *6*6 +128 *6 = 192 ft
Step-by-step explanation:
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