Answer:
Roots (It has a solution)
Step-by-step explanation:
One method to find out whether or not this equation has a solution or not is to try to solve for x..
As we could find a solution, it has a root.
Answer:
the cyclists rode at 35 mph
Step-by-step explanation:
Assuming that the cyclists stopped, and accelerated instantaneously at the same speed than before but in opposite direction , then
distance= speed*time
since the cyclists and the train reaches the end of the tunnel at the same time and denoting L as the length of the tunnel :
time = distance covered by cyclists / speed of cyclists = distance covered by train / speed of the train
thus denoting v as the speed of the cyclists :
7/8*L / v = L / 40 mph
v = 7/8 * 40 mph = 35 mph
v= 35 mph
thus the cyclists rode at 35 mph
Answer:
17.5
Step-by-step explanation:
3a = 15
a =5 .
3 x 5 = 15
2b = 5
15 + 5 = 20
----------------------------
b = 2.5
2.5 ( B ) + 15 ( 3a ) = 17.5
Answer:
The probability would be 7/12
Step-by-step explanation:
Since making or missing a shot is a binary situation, we know that we can subtract the probability from 1 and get the opposite.
1 - 5/12 = 7/12
9514 1404 393
Answer:
18/49
Step-by-step explanation:
Invert and multiply:
3/7 ÷ 1 1/6 = (3/7) ÷ (7/6)
= (3/7)×(6/7) = (3×6)/(7×7)
= 18/49
