Answer:
10 ft
Step-by-step explanation:
You have a photo of a palm tree in which the tree is 6 inches tall. The scale of the photo is 1.5 in : 2.5 ft, and you want the know the height of the actual tree.
The heights of things in the photo are presumed to be related to their actual height by the given scale factor.
actual height / photo height = 2.5 ft / (1.5 in)
actual height / 6 in = (2.5 ft)/(1.5 in)
Multiplying by 6 in gives ...
actual height = (2.5 ft)(6/1.5) = 10 ft
The actual palm tree is 10 feet tall.
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