In+which+situation+is+the+solution+of+union+of+two+sets+of+number+Set+3

Nico In some situations the intersection of two sets of numbers will be the "outer ends of a number line" which means that the outside of the number line will be included, but there will be a gap in between the two sets of included numbers. For instance, solve and graph the following equation to see the intersection yielding "outer ends of a number line", and then do the second to see another situation.

1) x +(10/-2)>15 or x + (5*4)< 5

2) x/-7 -5>-2 or 2x-7>19

__**Answer**__ 1. x is greater than 20 but less that -15 -this means that this is the problem where their are two sets of numbers that answer the question but this isn't a union of 2 sets of numbers because the numbers don't overlap but they don't have to overlap since this is a union (an "or" statement)

2. 13<x<21 -this means that there is only one set of numbers that answer the inequalities.