Answer:
D
Step-by-step explanation:
80/100 x 40 = 32
60/100 x 30 = 18
18 + 32 = 50
50/(80+60) x 100 = 35.7
= 36
Thank you
Answer:
How do i attach my pic?
Step-by-step explanation:
Answer:
72 degrees
Step-by-step explanation:
let the ratio be 2x and 3x
2x + 3x =180° ( co interior angles )
5x = 180°
x = 180 ÷ 5
x = 36°
And the smaller angle = 2 × 36° = 72°
Answer:
The average acceleration of train is 
Step-by-step explanation:
We have,
A train that slows down from 15 m/s to 8.6 m/s in 1.2 s. It means that 15 m/s is its initial velocity and 8.6 m/s is its final velocity.
It is required to find the average acceleration of the train.

The average acceleration of train is
. Negative signs shows that the train is decelerating.