El cajero de una tienda cuenta en total con 36 monedas entre monedas de $5.00 y $10.00. Si en total tiene $ 280.00 ¿Qué sistema de ecuaciones representa esta situación?

Can you draw an isosceles triangle with only one 80 degree angle?

Find the values of y: 3y^3(y^2+ 2/3y)=0

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%