1. 21/4 , you can use a calculator it’s way easier because your doing times
ANSWER:
We know that,
Speed = Distance/Time
So, Time taken = 20kmh-¹/160km
Answer:
D.
Step-by-step explanation:
So ur going from a smaller shape to a larger shape....means the scale factor is more then 1. The scale factor is the number that u multiply the original shape by to get the other shape.
so lets look at DE...it is 2.....and D'E' is 6
so 2 * x = 6...with ur scale factor being x
2x = 6
x = 6/2
x = 3.....so the scale factor is 3....because multiplying the original shape by 3, gives u the other shape
