Um motorista quer fazer uma viagem de 780 km em duas etapas, de modo que na primeira era percorra 60 km a mais que na segunda. quantos quilômetros ele deverá percorrer em cada etapa? (utilizando sistema de equação do 1 grau com uma incógnita por qualquer método)

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?

From a group of 10 men and 8 women, 5 people are to be selected for a committee so that at least 4 men are on the committee. howmany ways can it be done?