Answer:
12.63 km/hr
Step-by-step explanation:
Given the distance=240km
At 12 km/hr it will take =240/12 =20
time for Express train = 20-1=19
speed=240/19=12.63...km/hr
To find the inverse we swap y and x and solve for y:
x = 9y + 15
x - 15 = 9y
y = (x-15)/9
Last choice
Answer:total cost= 20x+50 x= number of hours
Step-by-step explanation: Gooooooooooooogle
18 (m + 4/9) - 16 = 118 Get rid of the parentheses by multiplying 18 * M + 4/9
18M + 8 - 16 = 118 Subtract 8 - 16
18M - 8 = 118 Add 8 to both sides
18M = 118 + 8 Add 118 + 8
18M = 126 Divide 126/18
M = 7
That is a no solution set, you have been bamboozled!
