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3 years ago

12

one moving company charges $800 plus $16 per hour. Another moving company charges $720 plus $21 per hour. At what number of hour

s will the charge by both companies be the same? What is the charge?

1 answer:

Artist 52 [7]3 years ago

4 0

Let x = time in hours Since their costs must be equal, 800 + 16x = 720 + 21x Solving, 800 - 720 = 21x - 16x 80 = 5x x = 16 hours Hope this helps~ :3

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Step-by-step explanation:

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Also this parabola's vertex lies in 3rd quadrant where coordinates of both x and y will be negative.

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Hence, option 4 that is $y=(x+3)^{2} -1$ is correct.

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skelet666 [1.2K]

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