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yKpoI14uk [10]
3 years ago
7

I need the answer to number 20. Please and thanks :D (really sorry for poor camera quality)

Mathematics
1 answer:
BARSIC [14]3 years ago
7 0
55.4 because straight fax
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Vince's birthday party is going to be at his favorite science museum next weekend. He has 8 friends who want to see the Dinosaur
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Answer:

See explanation

Step-by-step explanation:

Dinosaur Discovery show = 8 friends

Wild Weather show = 4 friends

Cost of Dinosaur Discovery show = $d

Cost of Wild Weather show = $w

At regular price:

Total cost of his friends' tickets = 8 * d + 4 * w

= 8d + 4w

At half price

Total cost of his friends' tickets =

8 * 1/2d + 4 * 1/2w

= 8/2d + 4/2w

= 4d + 2w

Total cost of his friends' tickets = 4d + 2w

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f(x) = x² - 2x + x - 2
f(x) = x² - x - 2

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