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4 years ago

the same cafe uses 18.5 cups of flour to make 100 servings of pancakes.how many cups of flour are in one serving of pancakes?

Mathematics

2 answers:

FinnZ [79.3K]4 years ago

7 0

About 5.4, it's 100 divided by 18.5

Eva8 [605]4 years ago

6 0

Answer: There are 0.185 cup of flour in one serving of pancakes .

Step-by-step explanation:

Given : The same cafe uses 18.5 cups of flour to make 100 servings of pancakes.

That means , The number of cups of flour require for 100 servings of pancakes = 18.5

Then, the number of cups of flour require for 1 serving of pancakes = ( Number of cups require for 100 servings) ÷ 100

Number of cups of flour require for 1 serving of pancakes = 18.5 ÷ 100= 0.185

Therefore , There are 0.185 cup of flour in one serving of pancakes .

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Answer:

First option: $3x^2-5x=-8$

Second option: $2x^2=6x-5$

Fourth option: $-x^2-10x=34$

Step-by-step explanation:

Rewrite each equation in the form $ax^2+bx+c=0$ and then use the Discriminant formula for each equation. This is:

$D=b^2-4ac$

1) For $3x^2-5x=-8$ :

$3x^2-5x+8=0$

Then:

$D=(-5)^2-4(3)(8)=-71$

Since $D$ this equation has no real solutions, but has two complex solutions.

2) For $2x^2=6x-5$ :

$2x^2-6x+5=0$

Then:

$D=(-6)^2-4(2)(5)=-4$

Since $D$ this equation has no real solutions, but has two complex solutions.

3) For $12x=9x^2+4$ :

$9x^2-12x+4=0$

Then:

$D=(-12)^2-4(9)(4)=0$

Since $D=0$ this equation has one real solution.

4) For $-x^2-10x=34$ :

$-x^2-10x-34=0$

Then:

$D=(-10)^2-4(-1)(-34)=-36$

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4 years ago

Solve for x. 3/4 = x/12 I need work shown to

marta [7]

$\frac{3}{4} = \frac{x}{12}$

To solve for x you have to bring the 12 to the other side

How do we do this?

Well if you think about it this is technically what the equation shows

$\frac{3}{4} = x * \frac{1}{12}$

This means to isolate x you can multiply both sides by 12 and that will cancel $\frac{1}{12}$ from the right side

$\frac{3}{4} * 12 = x * \frac{1}{12} * 12$

$\frac{36}{4} = x * 1\\\frac{36}{4} = x$

$\frac{36}{4}$ can be further simplified to...

^^^This is the answer

Check:

3/4 = 9/12

3/4 = 3/4

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Maurinko [17]

The area of a polygon = n*side^2 / (4 * tan(180/n))
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Let's calculate area for side = 2
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Now, let's calculate area for side = 6
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 173.824871442 / 19.3138746047 = 9

So, the area would be 9 times larger.

ALSO, looking at the formula
n*side^2 / (4 * tan(180/n))
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