contestada

At​ noon, a tank contained 20 in. of water. After several​ hours, it contained 18 in. of water. What is the percent decrease of water in the​ tank?

Respuesta :

Answer: there was a 10% decrease

Step-by-step explanation:

2 out of 10 is 5%, so if you double 10 to 20 you also double the percentage to 10%