21/20 -1/5x + 19/20 >or= 6x-6/5.
twenty one over twenty minus one over five x plus nineteen over twenty is grater or equal to six x minus six overfive.
2006-10-02 12:00:58 · 6 answers · asked by sunoje2000 2 in Science & Mathematics ➔ Mathematics
20x(21/20 -1/5x + 19/20) >= 20x(6x-6/5)
21x-4+19x >= 120x^2-24X
30x-4 .>= 120X^2-24x
120X^2-24x-30x+4 <= 0
120X^2-54X+4 <= 0
Graph, and everything below or equal to zero is your solution
2006-10-02 12:13:20 · answer #1 · answered by Mariko 4 · 0⤊ 0⤋
21/20 - 1/5x +19/20 >or= 6x-6/5
21/20 +6/5 +19/20 >or= 6x+1/5x
40/20 + 24/20 >or= 31x/5
64/20 >or = 124X/20
64 > or = 124x
64/124 > or = x
16/31 > or = x, or x < or = 16/31
2006-10-02 12:21:11 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
Hint: Multiply everything by the common denominator to get rid of all the fractions. This will make the inequality much easier to solve.
Remember you solve inequalities just like equations but you must remember to flip the sign when you multiply or divide by a negative number.
2006-10-02 12:08:23 · answer #3 · answered by MsMath 7 · 0⤊ 0⤋
the answer is 15.
2006-10-02 12:09:07 · answer #4 · answered by tinkerbell 4 · 0⤊ 0⤋
grater
2006-10-02 12:14:38 · answer #5 · answered by Mr. Midget 3 · 0⤊ 0⤋
pepole?
2006-10-02 12:19:49 · answer #6 · answered by Anonymous · 0⤊ 0⤋