Alberto tiene una alberca a 1/4 de su capacidad, después agrega 40 litros estando ahora a 2/3 de su capacidad. ¿De cuántos litros es la alberca?

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

For the inequality |c| < |d| to be true, which of the following must be true?