A leak in a water tank causes the water level to decrease by 3.6×10−2
millimeters each second.
About how many millimeters does the water level in the tank decrease in 5 hours, or 1.8×104
seconds?
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Response area × Response area mm
The water level decreases by 3.6×10^(-2) mm each second.
To find the decrease in 5 hours, we need to multiply the decrease per second by the number of seconds in 5 hours, which is 1.8×10^4.
(3.6×10^(-2) mm/s) * (1.8×10^4 s) = 6.48×10^2 mm
So, the water level in the tank decreases by 6.48×10^2 mm in 5 hours.