5. what is the probability that a number picked from the set {-4,-3,-2,-1,0,1,2,3,4,5) will be a
solution of 2x + 5> 1?
20%
30%
70%
80%

70%.

Step-by-step explanation:

Rearrange the inequality to isolate . Start by subtracting from both sides of the inequality:

,

.

Divide both sides by . (Keep in mind that if the multiplier or divisor is smaller than zero, it will flip the inequality sign.)

.

There are ten numbers in this set. Only seven of them will satisfy this inequality. Note that the "" symbol means strictly greater than (while "" means greater than or equal to.) As a result, will not count as a solution.

Assume that the number is picked randomly.

.

450 is the final answer! : )