Question

A snail creeps up a plank 8 centimeters each day and slides back down 15 millimeters each night. Write a numerical pattern showing the number of millimeters where the snail changes direction on which day will have the snail have moved 275 millimeters up from its starting point

Answer 1

So the snail nets 8 cm - 1.5 cm = 6,5 cm per day.
Then y = 6.5x where x = number of days.
When y = 275, x = 42.3 days or rounding up, 43 days.