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erica [24]
3 years ago
7

Emily, Andrew, and Isaiah had a challenge to see who could bike the farthest in one day. Emily biked 13 miles, Andrew biked 4 ti

mes as many miles as Isaiah and Isaiah biked 4 times as many miles as Emily. How many miles did Andrew bike?
Mathematics
1 answer:
mario62 [17]3 years ago
6 0

Answer:

Andrew biked 208 miles.

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If you get the answer just give me the full answer please. No matter the length.
sammy [17]

Answer:

CD = 4

Step-by-step explanation:

I believe you know the geometric mean for altitudes?

CD = √AD * DB = √8 * 2 = √16 = 4

If you are not aware of this theorem, then use the similarity of triangles.

ADC ~ CDB

AD/DC = CD/DB (cross-multiply)

CD^2 = AD*DB,

CD = √AD * DB = √8 * 2 = √16 = 4

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21 r16

Step-by-step explanation:

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