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VladimirAG [237]
2 years ago
14

Lisa and Jen left home at the same time, only Lisa biked to school at a speed of 10 mph while Jen just walked at a speed of 4 mp

h. How much time did it take Lisa to get to school if she reached school when Jen still was 1 mile away from it?

Mathematics
1 answer:
IrinaVladis [17]2 years ago
5 0

Answer:

\dfrac{1}{6} hour or 10 minutes

Step-by-step explanation:

Lisa:

Rate = 10 mph

Time = t hours

Distance = x miles

x=10\cdot t

Jen:

Rate = 4 mph

Time = t hours

Distance = x - 1 miles

x-1=4\cdot t

Hence,

10t-1=4t\\ \\10t-4t=1\\ \\6t=1\\ \\t=\dfrac{1}{6}\ hour

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