A lighthouse casts a 128-ft shadow. A nearby lamppost that measures 5 feet casts an 8-foot shadow. What is the height of the light house, rounded to the nearest foot? *

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asked Jul 22, 2022 117k views

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Danoo · Answer 1 · 2022-07-26T12:57:46+0000

Answer: 80 feet

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.

A lighthouse casts a 128-ft shadow. A nearby lamppost that measures 5 feet casts an 8-foot shadow. What is the height of the light house, rounded to the nearest foot? *

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