Dr.scheme question?

Question

http://www.htdp.org/2003-
09-26/Problems/5.html

half and half

Answer 1

I answered # 2 but you withdrew the question

This one is
Width =w
Length=L
Tile edge =e
Total tiles = T
Function:
T=
(Integer(L/e)+1)
*(Integer(w/e)+1)

Problem #2 if you want it:
Is this the problem?
Develop a function that computes the distance a boat travels across a river, given the width of the river, the boat's speed perpendicular to the river, and the river's speed. Speed is distance/time, and the Pythagorean theorem is c2 = a2 + b2.

Solution:

The width of the river is w
The boat speed is b
the river speed is r
the time it takes the boat to cross the river is t
using the Pythagorean theorem
the boat will travel a total distance of d
where d= sqrt((b*t)^2 +(r*t)^2)

since the boat will travel perpendicularly to the river
the width of the river is
w=b*t
so t=w/b
substitute for t
d=sqrt(w^2+(r*w/b)^2)

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Answer 2

Love to help you but I don't look at websites posted on this ok!