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Simora [160]
2 years ago
6

Which equation represents a direct relationship?

Mathematics
1 answer:
ra1l [238]2 years ago
7 0

Answer:

xy= -2x

Step-by-step explanation:

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2x+8y=6, -5x-20y=-15<br><br>need work because I don't understand
Vlada [557]

Answer:

Infinitely many solutions.

Step-by-step explanation:

Step: Solve 2x + 8y = 6 for x:

2x + 8y = 6

2x + 8y + −8y =6 + −8y (Add -8y to both sides)

2x = −8y + 6

2x/2 = (-8y + 6)/2 (Divide both sides by 2)

x = −4y + 3

Step: Substitute −4y + 3 for x in −5x − 20y = −15:

−5x − 20y = −15

−5 (−4y + 3 ) −20y = −15

−15 = −15 (Simplify both sides of the equation)

−15 + 15 = −15 + 15 (Add 15 to both sides)

0 = 0


4 0
3 years ago
Which of the following Platonic solids is also a pyramid? A. tetrahedron B. Hexahedron C. octahedron D. Icosahedron E. dodecahed
tiny-mole [99]
Tetrahedron - its the only one that has a base from which all edges meet at a single point.
3 0
3 years ago
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The simplest form of the decimal 0.525 as fraction is
boyakko [2]

0.525 =  \frac{525}{1000}  =  \frac{21}{40}
Divide 525/1000 by 25
7 0
3 years ago
2x-4y =8with domain -2
givi [52]
2x-4y=8 --> (4y=-2x+8)/2 ---> (2y=-x+4)/2 --> y=-1/2+2
slope is -1/2 domain is (2, 0)



7 0
3 years ago
Use the Distributive Property to write each expression as an equivalent algebraic expression.
xxMikexx [17]

Answer:

21 + 3a

Step-by-step explanation:

3 (7+a)

distribute 3 into parentheses:

21 + 3a

7 0
3 years ago
Read 2 more answers
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