please help
2007-10-01 09:23:05 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
2≤4x-7<6
9<=4x<13
9/4<=x<13/4
answer:
[9/4, 13/4)
2007-10-01 09:27:29 · answer #1 · answered by Mugen is Strong 7 · 1⤊ 0⤋
split into two parts:
2 <= 4x-7, so 9<=4x, and 9/4 <=x.
4x-7<6, so 4x <13, and x< 13/4
[9/4, 13/4)
2007-10-01 16:28:51 · answer #2 · answered by John V 6 · 0⤊ 0⤋
2â¤4x-7<6
Add 7 to all terms getting:
9 â¤4x<13
Now divide all terms by 4 getting:
9/4 ⤠x <13/4
So interval is [9/4,13/4)
2007-10-01 16:30:13 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
You basically just need to solve for x. Add 7 to all parts, then divide by 4. You will end up with x in the middle, the left side will be your lower bound, the right side your upper bound.
2007-10-01 16:28:23 · answer #4 · answered by Haley 5 · 0⤊ 0⤋