SYSTEMS OF INEQUALITIES 5
Solve each system of inequalities, write the solution
set as an interval, then graph this set on a number
line.
2x + 1<7 - x
6x +
5
> 4x + 7
2.
7
2x + 3 < 3x + 2;
8x + 3 < 2x + 25;
2
3.
8(x - 2) + 19 > 18x + 8
2
2(2x - 3) >
20x + 3
5
4
4x +
6x + 5
10
15
2 + 4x + 10 < 2x _ 6x + 5
3 15 15 10
22 - 6x + 10
4.
.

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling