Explain how comparing 645 and 738 different from comparing 645 and 649

Comparing both the pairs of number is different as difference in first pair is greater than difference in the second pair.

Step-by-step explanation:

At first pair we can see that the 645 and 738 begin with different numbers, one has 6 and other has  7.  In middle, one has 4 and the other has 3.  At last, one has 5 and the other has 8.  

So to find difference we need to subtract by taking carry, we get

738-645=93

In the second pair,645 and 649, begin with same number 6. In middle, Both have 4. At last, one has 5 and other has 9.  

To find difference we need to just find the difference between the third digit as other are same.

Therefore 649-645=4

So comparing both the pairs of number is different as difference in first pair is greater than difference in the second pair.

true

explanation:

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.