2006-11-14 08:52:22 · 8 respuestas · pregunta de Anonymous en Ciencias y matemáticas ➔ Matemáticas
x=(2/5+1)*3
x=4,2
2006-11-14 09:04:31 · answer #1 · answered by Fernanda 6 · 0⤊ 0⤋
1º) Pasá el 1 sumando:
x/3=2/5+1=7/5
2º) Pasá el 3 multiplicando:
x = 7/5 * 3 = 21/5
2006-11-14 12:06:29 · answer #2 · answered by Anahí 7 · 0⤊ 0⤋
x/2 = 2/5 de donde: x = 2(2) / 5 = 4/5
demostración:
4/5 / 2 = 2 / 5 ==> 4 /10 = 2 / 5
2006-11-14 11:35:57 · answer #3 · answered by narojcd 3 · 0⤊ 0⤋
x/2=2/5
x=2/5*2
x=2/5*10/5
x=20/25
ahora sustituye la x por
20/25/3-1=2/5
20/25/2=2/5
20/50=2/5
20/50=10/25=2/5 todo esto es igual a 2/5
2/5===2/5
2006-11-14 09:57:37 · answer #4 · answered by la china123456 2 · 0⤊ 0⤋
x/3=2/5+1=7/5,
entonces x=21/5=4.2
2006-11-14 09:20:45 · answer #5 · answered by Verrugo 2 · 0⤊ 0⤋
x/3-1=2/5
x/3=2/5 + 1(5/5)
x/3=7/5
x=7/5 * 3/1
x=21/5
entonces: (21/5/3/1) -1=2/5
21/15 - 1=2/5
7/5 - 5/5 = 2/5
2006-11-14 09:17:20 · answer #6 · answered by tontilla 2 · 0⤊ 0⤋
Te lo diría pero prefiero que hagas tu tarea solo
2006-11-14 08:59:37 · answer #7 · answered by INTER_MILENIO 1 · 0⤊ 1⤋
4.2
2006-11-14 08:56:40 · answer #8 · answered by Anonymous · 0⤊ 1⤋