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GREYUIT [131]
3 years ago
8

The beverage orders from school cafeteria are shown in the graph. If 760 students purchase a beveragehow many of the students ch

ose water

Mathematics
1 answer:
kari74 [83]3 years ago
5 0

according to the graph, 25% chose water, and

\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{25\% of 760}}{\left( \cfrac{25}{100} \right)760}\implies 190

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Answer:

D

Step-by-step explanation:

Imagine this as a right angle triangle, where the diagonal length is the hypotenuse, the length is one side, and the width is the other.

We can therefore use Pythagoras' Theorem (or Pythagorean Theorem) to solve. The formula for this is a²+b²=c², where c is the hypotenuse, and a and b are the sides.

We can input the values we know to this formula to get the width. This gives 110²+b²=133.14² or 12100+b²=17 726.2596.

From there subtracting 12100 from both sides gives b²=5626.2596.

Square rooting b isolates it, leaving b=75.0083969.

Since the value of the diagonal was approximate, this can be assumed the b is 75m.

**This content involves Pythagoras' Theorem/Pythagorean Theorem, which you may wish to revise. I'm always happy to help!

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3 years ago
If transports can carry only 5 tauntauns each, how many transports are needed to carry all 38 tauntauns at once?
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Step-by-step explanation

5 0
3 years ago
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What is the value of x/3y , when x = 18 and y = 3?
tekilochka [14]

So when you work with variables (x, y or any other letter), when they're beside a number it usually means to multiply.

So 3y can also be written as 3(3). So 3 multiplied by 3 is equal to 9

So now our problem looks like this,

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Since we already know what x is equal to, our problem will look like this

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So now all we have to do is divide.

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3 0
3 years ago
-3 1/2 - [-12 1/4]...............................................
nasty-shy [4]

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Step-by-step explanation:

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Answer:

A. f(x)= -(x-3)^(2)-2

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graphing the parabola, using the direction, vertex, focus, an axis of symmetry, we see that the direction it opens is down, like the picture shows. The vertex is at (3, -2), focus is (3,-9/4), axis of symmetry is x=3, and the directrix is y = -7/4 just as the picture shows. Therefore, A is the correct answer.

Hope this helps!!

7 0
3 years ago
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