Respuesta :
172(m/60) = 80....divide both sides by 172
m/60 = 80/172
m/60 = 20/43 ...multiply both sides by 60
m = 60 * 20/43
m = 1200/43
m = 27 39/43
m/60 = 80/172
m/60 = 20/43 ...multiply both sides by 60
m = 60 * 20/43
m = 1200/43
m = 27 39/43