Rodolfo tiene en su bolsillo un grupo de monedas de 5 y 10 centavos, y hay catorce monedas más de 5 centavos que las de 10 centavos. Si el total es un dolar, halla la cantidad de monedas de cada tipo. explicar el procedimiento ​

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

What does independent variable and dependent variable mean in math?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?