Daniel tiene un terreno agrícola de 12 ha. Se sabe que el 20% del terreno está sembrado de árboles frutales, y el 25%, de hortalizas. ¿Cuántos metros cuadrados ha destinado Daniel para estas plantaciones?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Adoctor administers a drug to a 38-kg patient, using a dosage formula of 50 mg/kg/day. assume that the drug is available in a 100 mg per 5 ml suspension or in 500 mg tablets. a. how many tablets should a 38-kg patient take every four hours? b. the suspension with a drop factor of 10 ggt/ml delivers the drug intravenously to the patient over a twelve-hour period. what flow rate should be used in units of ggt/hr? a. the patient should take nothing pills every four hours. (type an integer or decimal rounded to the nearest hundredth as needed.)

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.