A line graph shows a tank being emptied: depth 40 cm at 0 min, 30 cm at 2 min, 20 cm at 4 min, 10 cm at 6 min. Assuming the same steady rate, at what time (minutes) will the tank be empty (depth 0)?

Question

Accepted Answer

8. Depth falls 10 cm every 2 min, i.e. 5 cm/min; from 10 cm at 6 min it takes 2 more min, so empty at 8 min.

A line graph shows a tank being emptied: depth 40 cm at 0 min, 30 cm at 2 min, 20 cm at 4 min, 10 cm at 6 min.
Assuming the same steady rate, at what time (minutes) will the tank be empty (depth 0)?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 8 Graphs of Real-Life Data practice

A line graph shows a tank being emptied: depth 40 cm at 0 min, 30 cm at 2 min, 20 cm at 4 min, 10 cm at 6 min.Assuming the same steady rate, at what time (minutes) will the tank be empty (depth 0)?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 8 Graphs of Real-Life Data practice

A line graph shows a tank being emptied: depth 40 cm at 0 min, 30 cm at 2 min, 20 cm at 4 min, 10 cm at 6 min.
Assuming the same steady rate, at what time (minutes) will the tank be empty (depth 0)?