Question

< Tank A initially contained 124 liters of water. It is then filled with more water, at a constant rate of 9 liters per minute. How many minutes have passed, m, when Tank A contains 151 liters How many minutes have passed, m, when Tank A contains 191.5 liters How many minutes have passed,y, when Tank A contains x liters

Answer 1

we get that the equation that models this situation is:

$L=9m+124$

where L is the number of liters and m the minutes. So we have that

$151=124+9m\rightarrow m=\frac{151-124}{9}=3$

so after 3 minutes the tank jas 151 liters

$191.5=124+9m\rightarrow m=\frac{191.5-124}{9}=7.5$

so after 7.5m the tanks has 191.5 liters

and for the last one we get

$x=9y+124\rightarrow y=\frac{x-124}{9}$