a compass is used to draw Circle. Then the compass is opened wider and another Circle is drawn. Explain how this illustrates the H I N G E Theorem (if two sides of two triangles are congruent and the included angle is different, then the angle that is larger is opposite the longer side.)

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Carmen ayer en el mercado compro 3/4 kg de guayabas, 6/8 kg de peras, 1/2 kg de naranjas ¿cuantos kilogramos de fruta compro?