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vodomira [7]
3 years ago
9

Ellen casts a 5.5 foot shadow. If Ellen is 4 feet 6 inches tall, and her brother is 6 foot tall, how long of a shadow does he ca

st at the same time of day?
A) 6 ft. 8 in.

B) 7 ft. 2 in.

C) 7 ft. 4 in.

D) 7 ft. 8 in.
Mathematics
1 answer:
Nadya [2.5K]3 years ago
8 0

Answer:

C) 7 ft 4 in

Step-by-step explanation:

Shadows are assumed to be proportional to the height of the object casting them. Hence the brother's shadow will satisfy ...

shadow/(6 ft) = (5.5 ft)/(4.5 ft) = 11/9 . . . . . reduce the fraction

shadow = (6 ft) · (11/9) . . . . . . . . . . . . . . . . . multiply by 6 ft

shadow = 7 1/3 ft = 7 ft 4 in

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