Answer:
x=9
Step-by-step explanation:
3x-7=7+13
3x-7=20
3x=27
27/3
x=9
Answer:
8,8,8,7
Step-by-step explanation:
5,6,7,8,8,10,12
8 is the median since its the number in the middle
8 is the mode since it is the repeated number
7 is the range since 12-5 is 7
all the numbers added and divided by the number of numbers is the mean
(5+6+7+8+8+10+12)/7=8
Answer:
Every integer is a rational number, since each integer n can be written in the form n/1. For example 5 = 5/1 and thus 5 is a rational number. However, numbers like 1/2, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers. They are different because Integers include all whole numbers and their negative counterpart e.g. … -4, -3, -2, -1, 0,1, 2, 3, 4,… is a rational number but not an integer. All rational numbers belong to the real numbers. If two numbers are at the same distance from 0 as in the case of 10 and -10 they are called opposites.
Step-by-step explanation:
