Answer:
See below
Step-by-step explanation:
From noon to 1500 is three hours
train A then travels <u> 3x</u> where x = speed in km/hr
train B only travels for 2.45 hours and covers
<u> 2.45 ( x + 15) </u> where x + 15 is its speed in km/hr
these two values sum to the 300 km distance
3x + 2.45 ( x + 15) = 300
3x + 2.45 x + 36.75 = 300
x = 48.3 km/hr x+15= 63.3 km / hr
96/43 = 196/43
the equation is false.
Hope this helps!
It would be -56, just multiply as normal
Answer:The lateral area is 
Step-by-step explanation:
we know that
The lateral area of the right prism is equal to
where
P is the perimeter of the base
H is the height of the prism
Find the perimeter of the base P
----> the rhombus has four equal sides
substitute
B-x=3
Solve for x-
4x+1-1=13-1
4x=12
4x/4=12/4
x=3
