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lana66690 [7]
3 years ago
6

Mary worked a total of 16 12 hours during 5 days of the

Mathematics
1 answer:
lidiya [134]3 years ago
4 0
Her average work day was 3.3 hours.
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1.Ali had a cube box of side 10cm . He wants to place square stickers of 2cm around the entire box. How many square stickers are
nadya68 [22]

Answer: 150

Step-by-step explanation: cube has six sides, each 10 cm x 10 cm = 100 cm²

One sticker is 2 cm x 2 cm = 4 cm². One side needs 100/4 = 25 stickers

3 0
3 years ago
Explain how you could estimate 22% of 78 to check if your answer is reasonable.
pickupchik [31]

Answer:

78 rounds to 80. So decrease 22% to 1/5. Increase 78 to 80. = 17.16.

I hope this will help you..

4 0
2 years ago
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Johnny has a jar of coins that has quarters and dimes. There are 57 coins in the jar tha have a total of $7.95. How many dimes a
Leya [2.2K]

Answer:

37 dimes

Step-by-step explanation:

i was experimenting. 17 quarters and 37 dimes. 17 times .25 is 4.25. 37 times .10 is 3.70. add them and it's correct.

8 0
3 years ago
Find the zeros of the function<br> y=x^2-1
Sergio [31]

Answer:

-1 and 1 are the zeros

Step-by-step explanation:

Graph it and youll see that the curve touches the x axis at (-1,0) and (1,0)

5 0
3 years ago
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A teacher pays $39 for 10 books.What is the unit price of each book?
zheka24 [161]

To find the cost of each book, you need to divide the money spent on all of the books by the number of books.


$39 / 10 = $3.90 per book

8 0
4 years ago
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