A cuatro litros de una solución al 60% se agregan 16 litros de otra solución para obtener 20 litros de solución al 72%. ¿cuál es la concentración de la segunda solución? problemas de mezclas con porcentajes

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.