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Andru [333]
3 years ago
8

An airline charges $(22x + 20) for a ticket, $(x + 1) to check a bag, $ 2x for food, and $ (15x - 16) to upgrade to first class.

write an expression to represent the total cost of flying first class, checking a bag, and buying food on the plane.
Mathematics
1 answer:
vagabundo [1.1K]3 years ago
8 0
42x + 1x + 2x + 1x
Hope this helps
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What percent of 30 is 18
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18 is 60 percent of 30. 3 percent is 10 percent of 30 so 3 x 6 equals 18.
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In isosceles right triangle ABC, point is on hypotenuse \overline{BC} such that \overline{AD} is an altitude of \triangle ABC an
Dmitriy789 [7]

Answer:

Area of triangle is 25.

Step-by-step explanation:

We have been given an isosceles right triangle

Isosceles triangle is the triangle having two sides equal.

Figure is shown in attachment

By Pythagoras theorem

BC^2=AC^2+AB^2

AD is altitude which divides the triangle into two parts

DC=5 implies BC =10 since D equally divides BC

Let AC=a implies AB=a being Isosceles

On substituting the values in the Pythagoras theorem:

10^2=a^2+a^2

100=2a^2

\Rightarrow a^2=50

\Rightarrow a=\pm5\sqrt{2}

WE can find area of right triangle by considering height AB and AD

Area of triangle ABC is:

\frac{1}{2}\cdot BC\cdot AD     (1)

\Rightarrow \frac{1}{2}\cdot 10\cdot AD

And other method of area of triangle is:

\frac{1}{2}\cdot AB\cdot BC       (2)

Equating (1) and (2) we get:

\frac{1}{2}\cdot 10\cdot AD=\frac{1}{2}\cdot a\cdot a

\Rightarrow AD=\frac{a^2}{10}

\Rightarrow AD=\frac{50}{10}=5

Using area of triangle is: \frac{1}{2}\cdot BC\cdot AD

Now, the area of triangle ABC=\frac{1}{2}\cdot 5\cdot 10

\Rightarrow 25



4 0
3 years ago
Graph the function on the coordinate plane.
Simora [160]

Answer:

The graph is attached.

Step-by-step explanation:

The graphs:

f(x) = x + 1 where x < 0

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f(x) = x where x > 1

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Answer:

4/8 = 20/x

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Answer - (1/2)x + 3
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