Final answer:
A cartographer uses a scale of 1 inch to represent 100 miles on a map. If two landmarks are 257 miles apart, the correct distance for the map is 2.57 inches.
Step-by-step explanation:
A cartographer uses a scale of 1 inch to represent 100 miles on a map. If two landmarks are 257 miles apart, we can find the correct distance for the map using a proportion.
Let's set up the proportion:
1 inch = 100 miles
x inches = 257 miles
To solve for x, we can cross-multiply:
1 * 257 = 100 * x
257 = 100x
Divide both sides by 100 to isolate x:
257 / 100 = x
2.57 = x
Therefore, the correct distance for the map is 2.57 inches, so the answer is B) 2.57 inches.