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gayaneshka [121]
4 years ago
11

A lighthouse casts a 128-ft shadow. A nearby lamppost that measures 5

Mathematics
1 answer:
olga nikolaevna [1]4 years ago
8 0

Answer: 80 feet

Step-by-step explanation:

We can write these as fractions and do cross multiplication with the numerator being the height of the object while the denominator being the length of the shadow:

5 * 128 = 8x

640 = 8x

80 = x

Thus, the height of the lighthouse is 80 feet tall.

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