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adoni [48]
3 years ago
15

A migrating bird flies 315 miles in 15 hours. How many miles does it fly in 7 ​hours?

Mathematics
2 answers:
cluponka [151]3 years ago
6 0

Answer:

147

Step-by-step explanation:

Juli2301 [7.4K]3 years ago
6 0

Answer:

147 miles

Step-by-step explanation:

315/15 = 21mph

21 * 7 = 147 miles in 7 hours

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Gekata [30.6K]

Answer:

A. A(n) = 150 • (0.74)^n–1 ; 33.29 cm

Step-by-step explanation:

This is a geometric sequence.

a%5B1%5D=1.5m=150cm, r=0.74

The formula is

a%5Bn%5D=a%5B1%5Dr%5E%28n-1%29

Just substitute a1 = 150cm and r = 0.74

a%5Bn%5D=150%280.74%29%5E%28n-1%29

That's the rule.

For the second part, substitute n = 6

cm.

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