Answer:
Answer is 2a + 8 because 2 times a is 2a and 2 times 4 is 8
Answer:
Here is the answer
Step-by-step explanation:
Btw brainliest me plss
The money is a lot so it would be c
Answer: f=26
Step-by-step explanation: x^2+6x^2+12x+7/x= 26
Answer:
20 mph
Step-by-step explanation:
Let speed of Train a = Va mph
Let speed of Train b = Vb mph
Va = Vb + 30
Let time taken for Train a = Ta
Let time taken for Train b = Tb
time taken = distance travelled/speed
Ta = 350/Va = 350/(Vb+30)
Tb = 140/Vb
But they both travel in the same amount of time.
So, Ta = Tb

Cross multiply

Divide both sides by 210
