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zhannawk [14.2K]
3 years ago
13

What is 80, 023 written in scientific notation?

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0
The answer written in scientific notation is B.
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Four students were scheduled to give book reports in 1 hour. After the first report, 2/3 hour remained. The next two reports too
Novosadov [1.4K]

Answer:1/4 hour remaining

Step-by-step explanation:

Presenter 1 - 1/3 hour

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Convert to least common denominator of 12

4/12 + 2/12 + 3/12 = 9/12

12/12 - 9/12 = 3/12

Reduce 3/12 to get 1/4 hour remaining

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Carys earns 10 dollars an hour. How many hours would it take to earn $1?
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A container holds a combination of nickels and quarters. There are 156 coins in all, and their total value is $21.60. The system
Tatiana [17]
X+y=156
<span>0.05x+0.25y=21.6

-1/4*/ x+y=156
1/20x+1/4y=216/10

-1/4x-1/4y=156*-1/4=-39

</span>1/20x+1/4y=216/10
<span>+--------------------------
-4/20x=-17,4

x=87

</span>x+y=156
<span>
87+y=156    y=69

this question answer is </span><span>87 nickels and 69 quarters</span><span>

</span>
3 0
2 years ago
Simplify (-8pst + 3prq + 14) - (7prq - 20 - 2pst)​
Anna [14]

Answer:

-6pst -4prq+34

hope it will help you

7 0
2 years ago
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