O dobro de um ângulo adicionando a terça parte do seu complemento correspondendo a 90 graus. Determine esse ângulo em graus

The sum of two numbers is 86, and their difference is 20. find the two numbers

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.