2 years ago

5.3.21

Mathematics

1 answer:

Flauer [41]2 years ago

7 0

Answer:

y = -4x + 9

Step-by-step explanation:

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A machine worked for 5 hours and used 4 kilowats if electricity. The machine used ------ of a kilowatt each hour it worked.

slega [8]

Answer:

0.8 kilowatt/hour

Step-by-step explanation:

divide 4/5, gives you .

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3 years ago

Which equation could be used to find the length of the hypotenuse?

damaskus [11]

c^ 2 = a^2 + b^2

given a = 2 and b = 5

c^2 = 2^2 + 5^2

2^2 + 5^2 = c^2

answer is the first one

2^2 + 5^2 = c^2

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3 years ago

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Ayuda, necesito operación y solución

Genrish500 [490]

Answer:

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2 years ago

Is the given value a solution to the equation? 4(n) - 3 = -2(n) + 9 n=2

nlexa [21]

Answer:

Yes!

The solution to the equation is n = 2

Step-by-step explanation:

Given the equation

$4\left(n\right)-3=-2\left(n\right)+9$

remove the parentheses

$4n-3=-2n+9$

Add 3 to both sides

$4n-3+3=-2n+9+3$

Simplify

$4n=-2n+12$

Add 2n to both sides

$4n+2n=-2n+12+2n$

Simplify

$6n=12$

Divide both sides by 6

$\frac{6n}{6}=\frac{12}{6}$

Simplify

$n=2$

Therefore, the value of n = 2.

Hence,

Yes!

The solution to the equation is n = 2

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3 years ago

53/7 as a mixed number

marysya [2.9K]

Its already an improper fraction.
If you mean mixed number it would be 7 4/7.
Hope this helps!:)

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3 years ago

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