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Zielflug [23.3K]
3 years ago
15

Before school, janine spends 1/10 hour making the bed, 1/5 hour getting dressed, and 1/2 hour eating breakfast. What fraction of

an hour does she spend doing these activities
Mathematics
1 answer:
N76 [4]3 years ago
6 0
4/5 of an hour spent
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3. Multiply the polynomials (a^2 + 3a – 4) and (2a^2 – a + 5). Simplify the answer. Show your work.
Elza [17]

Answer:

2a^4+5a^3-6a^2+19a-20

Step-by-step explanation:

(a^2+3a-4)(2a^2-a+5)

2a^4-a^3+5a^2+6a^3-3a^2+15a-8a^2+4a-20

2a^4-a^3+6a^3+5a^2-3a^2-8a^2+15a+4a-20

2a^4+5a^3+2a^2-8a^2+19a-20

2a^4+5a^3-6a^2+19a-20

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3 years ago
Vanessa ate 1/3 of a pizza for dinner. Her brother Van ate 1/2 of the leftover pizza. How much of the pizza did Van eat?
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Uh for the second question, his height in decimal form would be 4.75, kind sir.

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Studentka2010 [4]
Hello,
Please, see the attached file.
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7. Fred had 85 marbles. After a few games, he had 120% of his original number. How many
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Answer:

102 marbles

Step-by-step explanation:

100% of 85 is 85.

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Hope that helps!

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3 years ago
Least to greastest awnsers
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