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Mrrafil [7]
3 years ago
10

In a recent student body election, Adam received 40 more than 40% of the votes. Brigitte received 40 less

Mathematics
1 answer:
Airida [17]3 years ago
7 0

The total vote cast was 700.

The winner was Adam (received 320 votes)

Why?

To solve the problem, we need to make equations to express the number of votes received for each of the candidates.

Solving we have:

Let be "v" the total vote cast,

For Adam,

A=40+0.4*v

For Brigitte,

B=0.5(40+0.4v)-40

B=20+0.2v-40

B=0.2v-20

For Carl,

C=20+0.5*B

C=20+0.5*(0.2v-20)

C=10+0.1v

For Diane,

D=180votes

Now, the total vote cast will be:

v=A+B+C+D\\\\v=(40+0.4v)+(0.2v-20)+(10+0.1v)+180\\\\v=(40-20+10+180)+(0.4v+0.2v+0.1v)

v=210+0.7v\\\\v-0.7v=210\\\\v=\frac{210}{0.3}=700

Now, substituting "v" in each equation to calculate the number of votes for each candidate, we have:

Adam=40+0.4*700=320votes\\Brigitte=0.2*700-20=120votes\\Carl=10+0.1*700=80votes\\Diane=180votes

Hence, we have that the total vote cast was 700, and the winner was Adam (received 320 votes)

Have a nice day!

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natali 33 [55]

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2) value of x = 3

Step-by-step explanation:

We need to use cross products to solve the proportions of x.

1.\,\, \frac{3}{5}= \frac{x}{100}

Solving:

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Keywords: Ratio and Proportions

Learn more about Ratio and Proportions at:

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#learnwithBrainly

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3 years ago
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What is the value of z?
Shalnov [3]

Answer:

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