Answer:
5 candles
Step-by-step explanation:
Enny is selling candles for $3 at a fund raiser
She starts selling $4 to help her make change
Therefore the number of candles x that will be sold to get $19 can be calculated as follows
3x + 4= 19
3x = 19-4
3x= 15
x = 15/3
x= 5
Hence 5 candles must be sold to get $19
To get the maximum height, we first determine the time at which this maximum height is attained by differentiating the given equation and equating the differential to zero.
h(t) = -0.2t² + 2t
Differentiating,
dh(t) = -(0.2)(2)t + 2 = 0
The value of t is equal to 5. Substituting this time to the original equation,
h(t) = -0.2(5²) + 2(5) = 5 ft
Thus, the maximum height is 5 ft and since it will take 5 seconds for it to reach the maximum height, the total time for it to reach the ground is 10 seconds.
Answers: maximum height = 5 ft
time it will reach the ground = 10 s
It is 70% Because:
250/100 + 175/x
Proportions
Answer:
18/27 would be a equivalent fraction to 36/54
Step-by-step explanation:
36/2=18 and 54/2=27
Therefore, 18/27
