Question

The actual length of Lake Superior is 350 miles and the width is 160 miles. What's the length and width of the lake on a map if the scale is "1 cm = 25 miles"?

Answer 1

length = 14 cm; width = 6.4 cm

Explanation:

We can use proportions to find the length and width.

Thus, for length, l, we have:

`(1)/(25)=(l)/(350) \\25l=350\\l=14`

For width, w, we have:

`(1)/(25)=(w)/(160)\\ 25w=160\\ w=6.4`