The floor of a lake slopes downward in a straight line.The depth 21 feet from shore is 18 feet.What is the depth 35 feet from shore?
A) 40.83 feet
B) 30.12 feet
C) 30.00 feet
D) 40.95 feet

Question

The floor of a lake slopes downward in a straight line.The depth 21 feet from shore is 18 feet.What is the depth 35 feet from shore? ​
A) 40.83 feet
B) 30.12 feet
C) 30.00 feet
D) 40.95 feet

Quizplus · Accepted Answer

The slope of the lake floor can be calculated as the change in depth per unit distance from the shore. The slope is (18 feet - 0 feet) / (21 feet - 0 feet) = 18/21. Using this slope, the depth at 35 feet from shore is 18/21 * 35 = 30 feet.

The Floor of a Lake Slopes Downward in a Straight