Answer:
C.78 km
Step-by-step explanation:
They are covering the distance at a combined speed of:
30 + 20 = 50 km/h
Distance to be covered:
130 km
Time:
130/50
2.6 hours.
From A:
30 × 2.6
78 km
Answer:
Step-by-step explanation:
The slope can be calculated using two points, (2, 60) and (4, 50) as shown below:
, where,
Plug in the values into the equation
Answer: A
Step-by-step explanation:
Answer:8b^3/c^3
Step-by-step explanation:
To simplify this expression
(2b/c)^3
We get
2b/c×2b/c×2b/c
=8b^3/c^3