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Re: A space shuttle orbits the earth at about 8 kilometers per second. Thi
[#permalink]
25 Jan 2021, 06:09
1
Carcass wrote:
A space shuttle orbits the earth at about 8 kilometers per second. This speed is equal to how many kilometers per hour?
(A) 480 (B) 2,880 (C) 4,800 (D) 28,800 (E) 48,000
We can solve this using equivalent ratios
1 hour = 3600 seconds
So, let's use equivalent ratio to compare kilometers/seconds We get: 8/1 = x/3600 Cross multiply: (8)(3600) = (x)(1) Simplify: (8)(3600) = x Since (8)(4000) = 32,000, we can conclude that (8)(3600) is a little bit less than 32,000