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Robert's bike requires 4 liters of gas to run for 15 kilometers. How many liters of gas does Robert need if he has to cover 45 kilometers?
Algebra
Sarah_21
Sarah_21 - 29.02.2016 10:55Robert's bike requires 4 liters of gas to run for 15 kilometers. How many liters of gas does Robert need if he has to cover 45 kilometers?
Alex - 29.02.2016 11:04Sarah, let’s make a proportion: 4 liters — 15 km x liters — 45 Km x = (4 liters * 45 Km) / 15 Km = 12 liters. answer is 12 liters.
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