Question

what number can you multiply each length on the map by to find the actual distance?
\\(\frac{1}{2}\\)
what is the actual distance from oscars campsite to the general store?
blank mi
4 in. : 2 mi

Explanation:

Step1: Find the scale - factor

The scale is given as 4 in. : 2 mi. To find the number to multiply map - length by, we first simplify the ratio. The ratio of map distance to actual distance is $\frac{4\text{ in}}{2\text{ mi}}=\frac{2\text{ in}}{1\text{ mi}}$. So, to get the actual distance from the map distance, we multiply the map distance by $\frac{1}{2}$ (because 1 mile corresponds to 2 inches on the map, so 1 inch on the map corresponds to $\frac{1}{2}$ mile in actual).

Step2: Calculate actual distance

The map distance from Oscar's campsite to the general store is 3 inches. We multiply the map distance by the scale - factor. The actual distance $d$ is $d = 3\times\frac{1}{2}=\frac{3}{2}=1.5$ miles.

Answer:

1.5