A tank is filling with water from a natural spring. Three days ago the water was four feet deep, and yesterday the water was eight feet deep. Assume that the water depth continues to rise at this same rate after today
and the question is...?
water is rising at 4ft/3days= 4/3 ft/day.
To find out how deep the water will be today, we need to determine the rate at which the water depth is increasing.
Given that the water depth was 4 feet three days ago and 8 feet yesterday, we can calculate the increase in depth per day by subtracting the initial depth from the final depth and dividing it by the number of days:
Rate of increase = (Final depth – Initial depth) / Number of days
Rate of increase = (8 feet – 4 feet) / 1 day = 4 feet/day
Now that we have the rate at which the water depth is increasing, we can determine today's water depth by adding this rate to yesterday's depth:
Today's water depth = Yesterday's depth + Rate of increase
Today's water depth = 8 feet + 4 feet/day = 12 feet
Therefore, today's water depth will be 12 feet.