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lina2011 [118]
3 years ago
13

Jillian sold 12% of the candy bars the class sold to raise money for a new water cooler in the school. If she sold 36 candy bars

, what was the total number before taxes?
Mathematics
1 answer:
Len [333]3 years ago
6 0

Answer:

So we can write an equation to solve this:

12/100 = 36/x

And then we are going to solve for x

x(12/100) = 36

36 x (100/12) = 300

The total number of candy bars was 300

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Solve equation by using the quadratic formula.
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Answer: 1:  x=3, x=1

2:  x= -5

3:  There are 2 real solutions.

4:  There are 2 real solutions.

5:  There are no real solutions.

6.  There is 1 real solution.

7.  

8.  x= -6, x = -2

9.  x = -1/6, x=1

10.  

Explanation:

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Substituting our known information we have:

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6.  If the discriminant of a quadratic is 0, then by definition there is 1 real solution.

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Using the zero product property we know that either x+6=0 or x+2=0.  Solving these equations we get x= -6 or x= -2.

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6x²-6x+1x-1=0

We group together the first two and the last two terms:

(6x²-6x)+(1x-1)=0

Factor the GCF out of each group.  In the first group, that is 6x:

6x(x-1)+(1x-1)=0

In the second group, the GCF is 1:

6x(x-1)+1(x-1)=0

Both terms have a factor of (x-1), so we can factor it out:

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