Which expressions are equivalent to 5x - 15? Select three options.

Mathematics

1 answer:

Zigmanuir [339]3 years ago

8 0

Answer:

-5(x-3)

-5(3-x)

-3(-5+2x)+x

Step-by-step explanation:

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There were 567 people at a concert when a band started playing. After each song, only one-third of the people stayed to hear the

emmasim [6.3K]

To write the function correctly, it is important to assign variables correctly and understand the situation of the problem clearly. For this, we let y the number of people and x as the number of songs played.

At x = 0 y = 567
at x = 1 y = 567 - 567(1/3)
at x = 2 y = 567 - 567(1/3)(1/3)
at x = 3 y = 567 - 567(1/3)(1/3)(1/3)

Therefore, the number of people left after x songs would be represented by the equation:

y = 567 - 567(1/3)x
y = 567 ( 1- x/3 )

8 0

3 years ago

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Find the slope of the line that goes through the points (1,9) and (3,15) and

Allisa [31]

Answer: B

Step-by-step explanation:

$m=\frac{15-9}{3-1}=3$