El dueño de la empresa “Cyberfax S. A.” desea premiar a sus trabajadores con un bono extra de S/. 6 680 en forma directamente proporcional a las horas extras trabajadas e inversamente proporcionales al número de tardanzas, de acuerdo al siguiente cuadro de datos: ¿Cuanto le corresponde al segundo?

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

What is negative 3/9 times negative 2/8 ?