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Stels [109]
3 years ago
5

During the election for class president, 40% of the students voted for Gerardo, 35% of the students voted for Leandro, and 25% o

f the students voted for Juju. 70 students voted for Leandro. How many more students voted for Gerardo than for Juju?
Mathematics
1 answer:
mrs_skeptik [129]3 years ago
8 0

Answer:  30 students more voted for Gerardo than for Juju.

Explanation:

<u>so 'x' represent the total number of students</u>

<u />

<u>0.40x of the students voted for Gerardo</u>

<u />

<u>0.35x of the students voted for Leandro</u>

<u />

<u>0.25x of the students voted for Juju</u>

<u />

<u>70 students voted for Leandro:</u>

<u />

<u>0.35x = 70 </u>

<u />

<u>by solving we find:</u>

<u />

<u>x = 200 students</u>

<u />

<u>0.40x - 0.25x = (0.40 - 0.25)x = 0.15x = 0.15*200 = 30</u>

<u />

<u />

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To find the probability, we need to know that we have two events. First, when one piece of mail is drawn at random and put aside and, second, when a second piece of mail is drawn.

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