Please ergent i need help!!!
2007-06-22 10:11:50 · 14 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
4/5 = .8
.8(4x+8) = 32
use distributive law (multiply .8 individually with whatever is in the brackets)
.8(4x + 8)=32
3.2x + 6.4 = 32
3.2x = 32-6.4
3.2x = 25.6
x = 25.6/3.2
x = 8
2007-06-22 10:16:02 · answer #1 · answered by t m 3 · 0⤊ 0⤋
x = 8
2007-06-26 11:54:32 · answer #2 · answered by ♫●GARV●♫ 6 · 0⤊ 0⤋
4/5 (4x +8) = 32
4x + 8 = 32 (5/4)
4x + 8 = 40
4 (x + 2) = 40
x + 2 = 40/4
x + 2 = 10
x = 8 (Answer)
2007-06-22 17:20:06 · answer #3 · answered by Lily C 1 · 0⤊ 0⤋
x=8
2007-06-22 17:15:07 · answer #4 · answered by gandalf_for_president_3rd_age 3 · 0⤊ 0⤋
4/5 (4x + 8) = 32
multiply 5/4 for both sides
4x + 8 = 40
subtract 8 for both sides
4x = 32
divide 4 for both sides
x = 8
2007-06-22 17:18:43 · answer #5 · answered by 7 · 0⤊ 0⤋
4/5 * (4x + 8) = 32
16x/5 + 32/5 = 32
(16x + 32) / 5 = 32
16x + 32 = 32 * 5
16x + 32 = 160
16x = 160 - 32
16x = 128
x = 128/16
x = 8
Proof:
4/5 * ([4*8] + 8) = 32
4/5 * (32 + 8) = 32
4/5 * 40 = 32
32 = 32
2007-06-26 06:43:47 · answer #6 · answered by Jun Agruda 7 · 2⤊ 0⤋
okay heres the steps. multiply by 5 so youll have 4(4x+8)=160. Then multiply so it becomes 16x+32=160. Then isolate the x, it becomes 16x=160-32. This equals 16x=128. Then divide, 120/16= 8. So x=8. hope i helped :D
2007-06-22 17:13:58 · answer #7 · answered by ♥crazy beautiful life♥ 4 · 1⤊ 0⤋
4/5(4x+8) = 32
multiply by 5 on both sides
4(4x+8) = 160
Divide both sides by 4
4x+8 = 40
subtract 8 both sides
4x = 32
divide 4 both sides
x = 8
2007-06-22 17:16:22 · answer #8 · answered by anotherbsdparent 5 · 0⤊ 0⤋
4/5(4x+8)=32
multiply by 5
4(4x+8) = 160
Divide by 4
(4x+8)= 40
divide by 4 again
x + 8 = 10
subtract 8
x = 10
2007-06-22 17:14:28 · answer #9 · answered by ignoramus 7 · 0⤊ 1⤋
160-32=16x ==> x=8
2007-06-22 17:17:39 · answer #10 · answered by pirooz 1 · 0⤊ 0⤋