Given:
The sequence is:
-15,-10,-4, 3, 11, ______
To find:
The next number.
Solution:
We have,
-15,-10,-4, 3, 11, ______
Here, the difference between two consecutive terms are:


Similarly,



It is clear that the difference difference between two consecutive terms is increasing by 1. So, the next difference must be (8+1)=9.
Let the next number be x. Then,



Therefore, the next number of the sequence is 20.
Answer:
54.
Step-by-step explanation:
360/5 = 72
180-72=108
108/2= 54
15 36/100 / 6 is 2.56 so i think the tortoise walks 2.56 meters per minute
Answer:
There are 200 centimetres in 2 metres. Therefore, 80 centimetres is equal to 80/200 x 100 = 40 percent of 2 metres