1st strategy: Add the first two terms and the last two.
16+35 + 24+14
51 + 38 = 89
2nd strategy: add the first and last term and the middle 2 terms.
16 + 35 + 24 + 14
30 + 59 = 89
Answer:
Step-by-step explanation:
3x-2=-1
3x = -1 + 2
3x = 1
x = 1/3
The answer to the question is A: 0.96 centimeters
of 1.6 is 0.64
If you subtract 0.64 from 1.6 you get 0.96, 
of 1.6
The middle number is 16.95
<h3>What is Number system?</h3>
The collection of numbers is called the number system. These numbers are of different types such as natural numbers, whole numbers, integers, rational numbers and irrational numbers.
Given:
Numbers are 12.7 and 21.2
Difference between number
= 21.2-12.7
=8.5
middle number
= 12.7+ 8.5/2
= 12.7+ 4.25
= 16.95
Hence, the middle number is 16.95.
Learn more about this middle number here:
brainly.com/question/17721191
#SPJ1
9,11,13,20
20 -9 = 11
Range: 11 so its not 17
11 + 13 = 24
24/2 = 12
Median: 12 so its not 10
9+ 11 + 13 + 20 = 53
53/4= 13.25
Mean: 13.25 so its not 12
IQR: 6.5 so its not 7 or 12
