The answer would be the last one 18/27 because you would multiply 9 x 7 = 27 so then you would have to multiply the top by that too so 6 x 3 = 18 giving you 18/27
Ab + bc = ba + bc = b( a + c )
Answer:
34 mph and 68 mph respectively
Step-by-step explanation:
Step one:
given data
let the speed of the first truck be x mph
and the speed of the second truck be 2x mph
time taken = 6 hours
total distance = 204 miles
Step two:
from speed = distance/time
distance= speed*time
hence
2x*6-6x= 204
12x+6x= 204
6x= 204
divide both side by 6
x= 204/6
x=34 mph
The second truck was moving at
=2x
=2*34
=68 mph
Answer:
9 miles
Step-by-step explanation:
yes i used a calculator
