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Evgen [1.6K]
3 years ago
10

URGENT!! PLS HELP 16 students are competing an art contest in how many different ways can students finish first second and third


Mathematics
1 answer:
Helen [10]3 years ago
8 0
In 48 ways I just did 16 times 3
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Helppp me Please!!!!! :)
irina [24]

Answer:

x = 30 \\ y = 10

Step-by-step explanation:

8x + 6y = 300 \\ x + y = 40 \\ 6x + 6y = 240 \\ 2x = 60   \\ =  > x = 30 \\ y = 10

7 0
3 years ago
Find the value of x.
postnew [5]

Answer:

x = 113

Step-by-step explanation:

Since the shape is a quadrilateral, the angles add up to 360 so:

x + 87 + 113 + 47 = 360

x + 247 = 360

x = 360 - 247

x = 113

5 0
3 years ago
Graph the equation<br>y=x^2 -<br><img src="https://tex.z-dn.net/?f=y%20%3D%20x%5E%7B2%7D%20%20-%202" id="TexFormula1" title="y =
rusak2 [61]

Answer:

the graph is attached below

Step-by-step explanation:

y=x^2 - 2

LEts make a table to get the coordinates

we need to select integers between -3 and 3

x                  y=x^2 - 2

-2                y=(-2)^2-2=2               (-2,2)

0                 y= (0)^2 - 2= -2          (0,-2)

2                 y=(2)^2-2 = 2              (2,2)

Now we use the table for graphing the given equation

The graph is attached below



6 0
4 years ago
4/r=5/7solve for r. Help pls
antiseptic1488 [7]
Hello!

You first cross multiply

4 * 7 = 28

5 * r = 5 * r

r * 5 = 28

Divide both sides by 5

r = 28/5 = 5.6

The answer is 28/5 or 5.6

Hope this helps!
4 0
3 years ago
Read 2 more answers
Order the following from least to greatest.<br>1/16<br>.0173<br>1/7<br>2.2<br>-0.25​
Dovator [93]

Answer:

1.-0.25     2..0173   3. .1/16    4. 1/7     5.2.2

Step-by-step explanation:

You want to put all numbers in fractions to see which numbers are smallest

5 0
3 years ago
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