Question 552504
This is pretty straightforward and requires understanding the relationships between distance (d), time (t), and rate (r).
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The basic formula for distance, rate, and time is:
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d = r * t
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Given:
t = 8 hrs
r = 4.5 km/hr
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Solve for d:
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d = 4.5 km/hr * 8 hrs
d = 36 km (the hours cancel out)
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Note: for other problems in this same series asking you to solve for r or t, rewrite the basic equation and solve for the missing quantity:
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d = r * t
r = d / t
t = d / r
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Cheers,
Lee