Answer:
8 ≥ x+3 or x ≥ 12
Step-by-step explanation:
The sum of a number (additon) and 3 (x+3) is no more than (so less than or equal to eight) OR is more than 12 ( x is more than 12, x ≥ 12 )
Add -5 to each side of the inequality:
-3 ≤ x + 5 ≤ 8
-3 - 5 ≤ x + 5 - 5 ≤ 8 - 5
-8 ≤ x ≤ 3
Since x is an integer, there are 12 possible solutions belonging to {-8, -7, ..., 1, 2, 3}. In the sum of these solutions, the integers -3 to 3 cancel out, and the rest give
-8 - 7 - 6 - 5 - 4 = -30
Answer:
650 students are spanish.
Step-by-step explanation:
just say 1,000 people = 100%
then 650 students would = 65%
Hope I helped
Answer: 59
Step-by-step explanation:
Sum(-28 through -1) is returned to zero by sum(1 through 28), plus the integer 0.
This is 28*2+1 integers (57)
The next two in the series Sum(29 & 30) equal the desired 59.
This is a total of 57 + 2 integers = 59 integers
