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nasty-shy [4]
3 years ago
8

Gymnast are lined up at the drinking fountain. The first four each take 10 3/10 seconds. The fifth takes 5 4/5 seconds. The sixt

h and seventh each take 12 2/5 seconds. Mariah, who is eighth, calculates that she has waited 1 minute, 11 4/5 seconds for her turn. Is she right?
Mathematics
1 answer:
katen-ka-za [31]3 years ago
5 0
Yes, Mariah is correct!
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Plz tell me what goes with what
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Answer:

Step-by-step explanation:

x²+5x-84

look for the factors of 84 that when you add together it will give +5

look for the factors of 84 that when you multiply together it will give -84

12 and 7

           addition,                           multiplication

-12+7 = -5                                      -84

-12-7= -19                                        84

+12-7 = +5                                      -84       correct

then equate into the =5x and -84

x²+12x-7x-84

then factorize

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3 years ago
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Answer:

Step-by-step explanation:

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The answer should be 16
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