Question

divida o numero 148 imversamente a 1sobre 4, 2sobre 3, 2sobre 5

Answer 1

x/( 1/4)  = y/(2/3) = z/(2/5)

inversamente

x/(4/1) = y/(3/2)  = z/(5/2)

mmc = 2 e 1 = 2

eliminando os denominadores

x=4/1 * 2/1 = 8 *****

y =3/2  * 2/1  = 6/2 = 3 ****

z =5/2 * 2/1 = '0/2 = 5 *****

o exercicio ficou assim >>>> dividir 148 diretamente proporcional a  8, 3 e 5

x/8 = y/3 = z/5 = ( x + y + z )/ ( 8 + 3 + 5 )  = 148/16 =37/4

x/8 = 37/4

4 * x = 8 * 37

4x = 296

x = 296/4 = 74 ***

y/3 = 37/4

4 * y = 3 * 37

4y = 111

y = 111/4 =27,75  ****

z/5 = 37/4

4 * z = 5 * 37

4z =  185

z = 185/4 = 46,25 ****