Answer:88 nickels
Step-by-step explanation:
Answer:
A. 7x + 6y
Step-by-step explanation:
49x² + 84xy + 36y²
Factoring the perfect square:
(7x + 6y)²
7x + 6y is a factor.
Given :
Initial concentration , 240 ppm .
Final concentration , 360 ppm .
To Find :
Percent increase.
Solution :
Percentage increase is given by :

Therefore , percent increase is 50 % .
Hence , this is the required solution .
Answer: 52.94
Step-by-step explanation:
Length of train A = 480m
Tunnel length = 1320m
Time taken to cross tunnel = 2 mins = 120sec
Length of train B = 420m
Train B is slower than train A
Difference between their speed = 18km/hr
18km/hr = (18×1000)/3600 = 5m/s
Speed of train A :
Speed = distance / time
Speed = 1320 / 120 = 11m/s
Therefore, speed of train B :
(11 - 5)m/s = 6m/s
Relative speed of the two trains is therefore;
(Speed of A + speed of B)
Note : they are moving in opposite direction
( 11 + 6)m/s = 17m/s
Therefore time taken to cross each other :
(Sum of the length of both trains / relative speed of the trains)
Time taken = (480m + 420m) / (17m/s)
Time taken = 900m / 17m/s
Time taken = 52.94s
Answer:
"Jeromar" give away more tickets
Step-by-step explanation:
What we must do is calculate the amount to which a ticket is equivalent, to do this, the value of the purchase must be divided by the number of tickets they give away, as follows:
"Colima"
150/4 = 37.5
In other words, they give away 1 ticket for $ 37.50
"Jeromar"
100/3 = 33.33
In other words, they give away 1 ticket for $ 33.33
Which means that "Jeromar give away more tickets, because the cost of the ticket is lower