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2 years ago

It takes 40 cents worth of meat to make 2 sandwiches. What is the cost of the meat for 20 sandwiches?

Mathematics

2 answers:

Slav-nsk [51]2 years ago

7 0

Answer:

400 cents or four dollars

Step-by-step explanation:

If 2x10=20, then you could multiply the 40 by 10 to get the answer.

djverab [1.8K]2 years ago

5 0

Answer : The cost of the meat for 20 sandwiches is, 400 cents

Step-by-step explanation :

As we are given that the cost of the meat for 2 sandwiches is, 40 cents.

Now we have to determine the cost of the meat for 20 sandwiches.

As, the cost of the meat for 2 sandwiches = 40 cents

So, the cost of the meat for 20 sandwiches = $\frac{20}{2}\times 40$ cents

= 400 cents

Therefore, the cost of the meat for 20 sandwiches is, 400 cents

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Step-by-step explanation:

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Vedmedyk [2.9K]

Step-by-step explanation:

$x^{2} - 12x + 59 = 0$

Given equaiton is in the form of ax^2 +bx+c=0

we apply quadratic formula to solve for x

$x= \frac{-b+-\sqrt{b^2-4ac} }{2a}$

a= 1 b = -12 and c= 59

$x= \frac{12+-\sqrt{(-12)^2-4(1)(59)}}{2(1)}$

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Divide the 12 and square root terms by 2

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2 years ago

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The maximum grade allowed between two stations in a rapid-transit rail system is 3.5%. Between station A and station B, which

saveliy_v [14]

Answer:

x = 3.1 %

Step-by-step explanation:

Let x be the slope the track.

Given:

Distance between station A and B = 270 ft

Track rise = $8\frac{1}{2} = \frac{17}{2} = 8.5\ ft$

We need to find the slope of the railway track between station A an B.

Solution:

The maximum grade allowed between two stations in a rapid-transit rail system is 3.5%.

We know that slope of the railway track is equal to gradient of the tracks.

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$Slope\ of\ the\ the\ tracks =\frac{Distance\ between\ two\ stations}{track\ rises}$

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2 years ago

Which would prove that ΔABC ~ ΔXYZ? Select TWO options.

gulaghasi [49]

Answer:

$\frac{BA}{YX}=\frac{BC}{YZ}$ , ∠C ≅∠Z

$\frac{AC}{XZ}=\frac{BA}{YX}$ , ∠A≅∠X

$\frac{BA}{YX}=\frac{BC}{YZ}=\frac{AC}{XZ}$

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem

The corresponding sides are

BA and YX

BC and YZ

AC and XZ

The corresponding angles are

∠A and ∠X

∠B and ∠Y

∠C and ∠Z

$\frac{BA}{YX}=\frac{BC}{YZ}=\frac{AC}{XZ}$

and

∠A≅∠X

∠B≅∠Y

∠C ≅∠Z

therefore

$\frac{BA}{YX}=\frac{BC}{YZ}$ , ∠C ≅∠Z

$\frac{AC}{XZ}=\frac{BA}{YX}$ , ∠A≅∠X

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Lubov Fominskaja [6]

<h2>Explanation:</h2><h2></h2>

We know that the volume of a prism is defined by:

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Substituting values:

$V=\left(\frac{d-2}{3d-9}\right)\left(\frac{4}{d-4}\right)\left(\frac{2d-6}{2d-4}\right) \\ \\ \\ Simplifying: \\ \\ V=\frac{d-2}{3d-9}\cdot \frac{4}{d-4}\cdot \frac{d-3}{d-2} \\ \\ V=\frac{\left(d-2\right)\cdot \:4\left(d-3\right)}{\left(3d-9\right)\left(d-4\right)\left(d-2\right)} \\ \\ V=\frac{4\left(d-3\right)}{\left(3d-9\right)\left(d-4\right)} \\ \\ V=\frac{4\left(d-3\right)}{3\left(d-3\right)\left(d-4\right)}$

$Finally: \\ \\ \boxed{V=\frac{4}{3\left(d-4\right)}}$

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