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Artemon [7]
3 years ago
8

there are 68 students in the 6th grade in the election for class president gary got 18 votes julie got 22 votes and the third ca

ndidate got y votes if every student voted which equation gives the correct value for y
Mathematics
1 answer:
charle [14.2K]3 years ago
8 0

Okay! Let's think simply about this and set up an equation.

18 votes + 22 votes + y votes = ?

It has to equal 68 votes because the problem says <em>everyone voted. </em>

All we need to do to figure out how much y is, is to subtract 18 and 22 from 68.

That way, we are left with however many votes the student gave to the <em>3rd candidate. </em>

<u>18 + 22 + y = 68 </u>

<u>y = 68 - 18 - 22 </u>

<u>y = 28 </u>

Your answer is 28 votes


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A candy distributor needs to mix a 30% fat-content chocolate with a 40% fat-content chocolate to create 150 kilograms of a 32% f
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120 kg of 30% fat-content chocolate and 30 kg of 40% fat-content chocolate.

Step-by-step explanation:

We are given that a candy distributor needs to mix a 30% fat-content chocolate with a 40% fat-content chocolate to create 150 kilograms of a 32% fat-content chocolate.

Let the amount of 30% fat-content chocolate be 'x' and the amount of 40% fat-content chocolate be 'y'.

So, according to the question;

x + y = 150 ------------ [equation 1]

and 30\% \text{ of } x +  40\% \text{ of } y=32\% \text{ of } 150

30x+40y= 32 \times 150

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x = 120 kg

Now, putting the value of x in equation 1, we get;

x + y = 150

120 + y = 150

y = 30 kg

Hence, 120 kg of 30% fat-content chocolate and 30 kg of 40% fat-content chocolate.

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