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3 years ago

8

Of the number of students in the cafeteria, 40% are girls. There are 20 girls in the cafeteria how many students are in the cafe

teria

1 answer:

Yuki888 [10]3 years ago

3 0

Answer:

34214

Step-by-step explanation:

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What is the value of 7(x+4)² - 3x when x = 2?

sdas [7]

Answer: the value of 7x-y is -14.

Step-by-step explanation:

When x=2 and y=4,

To find the value of 7x - y when x =2, y = 4, this means when ever you see x, put 2 in replacement, y, put 4 respectively.

7x - y = 7(2 - 4)

14 - 28

= -14.

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3 years ago

Two boys are running track. They decide to start in the northwest corner and go opposite directions around the rectangular track

Mariulka [41]

= <u>187.3 yards</u>

Step-by-step explanation:

The set-up will represent a triangle whereby the :

Width = Height = 150 yards
Diagonal = Hypotenuse = 240 yards
Length = Base = ?

${a}^{2} = {c}^{2} - {b}^{2} \\ {a}^{2} = {240}^{2} - {150}^{2} \\ {a}^{2} = 57600 - 22500 \\ \sqrt{ {a}^{2} } = \sqrt{35100} \\ a = 187.3yards \: (rounded \: off \: to \: 1dp)$

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3 years ago

If five quarts of paint are needed for 250 square-feet of room, 19 quarts of paint will cover how many square feet of room?

Allushta [10]

Answer:

check the attachments for the solution

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2 years ago

Complete the table to determine the amount of money that gabriella would recieve in exchange for 200 u.s dollars in each country

Anestetic [448]

Answer:

might wanna show us the table

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3 years ago

I don't know how to do this

Dvinal [7]

$a_1=2;\ r=-\dfrac{3}{2}\\\\a_2=a_1r\to a_2=2\cdot\left(-\dfrac{3}{2}\right)=-3\\\\a_3=a_2r\to a_3=-3\cdot\left(-\dfrac{3}{2}\right)=\dfrac{9}{2}\\\\a_4=a_3r\to a_4=\dfrac{9}{2}\cdot\left(-\dfrac{3}{2}\right)=-\dfrac{27}{4}\\\\a_5=a_4r\to a_5=-\dfrac{27}{4}\cdot\left(-\dfrac{3}{2}\right)=\dfrac{81}{8}$

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4 years ago