Mathematics, 14.12.2020 23:20 tae1731

Salena, Justin and Brandon were riding their bikes to the library after school. The library is miles from school. Salena rides her bike miles every five minutes. Justin rides his bike miles every 12 minutes. Brandon rides his bike miles every minutes. If they all leave school at the same exact time and follow the same exact path to the library, which person will arrive at the library first?

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Answer from: ehhshsh

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Answer from: Quest

answer: you need the equation in the question so i can answer it

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Answer from: Quest

answer: 35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %, p(e) = 27 % and $p(l\cap e)$ = 4 %

and, we have to find out, $p(l\cup e)$

but, we know that,

$p(l\cup e)= p(l) + p(e) - p(l\cap e)$

which is the required equation that will use to find the probability of a late departure or an early departure.

$p(l\cup e)= 12 + 27 - 4$

$p(l\cup e)= 35 %$

therefore, the probability of a late departure or an early arrival = 35 %

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Salena, Justin and Brandon were riding their bikes to the library after school. The library is miles...

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