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mamaluj [8]
3 years ago
7

What set or sets does the number 15 belong to

Mathematics
1 answer:
Furkat [3]3 years ago
5 0

Answer:

composite

Step-by-step explanation:

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I need help please you haft to use elimination to solve thanks
nekit [7.7K]
-7x+14y=-14
-3x+7y=-3
when using elimination you need to multiply or divide one equation to be able to “eliminate” a variable.
-7x+14y=-14
-2(-3x+7y=-13)
multiply the second equation by -2
-7x+14y=-14
6x-14y=6
simplify
-1x=-8
divide by -1 on both sides to isolate the x
x=8
now you can plug in 8 for x in one of the equations.
-3(8)+7y=-3
simplify
-24+7y=-3
add -24 to both sides the isolate the constant and variable
7y=21
now divide by 7 on both sides to isolate y
y=3
this system of equation had one solution at (8, 3)

i hope this helps :)
3 0
3 years ago
Which equation is equivalent to 2^4x= 8^x-3
rosijanka [135]

Answer:

2^4x=8^x-3?

2x^4=2^(2x-3)

2x^4=2^(2x-6)2x^4=2^(3x-3)

2x^4=2^(3x-9).

7 0
3 years ago
Area of a parallelogram base 15 yards height 21 2/3 yards
Paul [167]
The area would be 324 yards square. Since the height is already found, you multiply 15 by 21 2/3 yards.
Hope this helped :) 
6 0
3 years ago
Jose and Kaitlyn have a contest to see who can throw a baseball the farthest. Kaitlyn wins, with a throw of 200 ft. If Jose thre
Mumz [18]
3/4(200) = 600/4 = 150 ft
8 0
3 years ago
What is y<br> Pls helpppppppp<br> ​
tensa zangetsu [6.8K]

Answer:

y=55

Step-by-step explanation:

8 0
3 years ago
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