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Natali [406]
3 years ago
9

Carl wants to find the product 30×56.

Mathematics
1 answer:
ozzi3 years ago
4 0

Answer:

Your answer will be D. He knows that 30 × 16 is 5 then multiples 5 by 5 to get 25.

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Molly was packing books in a box to send to her friend. the box cannot weigh more that 2kg. if each book has a mass of 200g, wha
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First convert 2kg to grams which would be 2000g.
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Encouraged by his investment, Joseph decides to open another CD account. This time, he deposits $1000 and plans to leave it unto
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3 years ago
Dustin has only nickels and quarters in his piggy bank. He has 49 coins total for a combination value of $8.85. How many of each
stepan [7]

Answer: he has 32 quarters and 17 nickels.

Step-by-step explanation:

The worth of a quarter is 25 cents. Converting to dollars, it becomes

25/100 = $0.25

The worth of a nickel is 5 cents. Converting to dollars, it becomes

5/100 = $0.05

Let x represent the number of quarters that he has in her wallet.

Let y represent the number of nickels that she has in her wallet.

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x + y = 49

the total value of the coins is $8.85. This means that

0.25x + 0.05y = 8.85 - - - - - - - - - - 1

Substituting x = 49 - y into equation 1, it becomes

0.25(49 - y) + 0.05y = 8.85

12.25 - 0.25y + 0.05y = 8.85

- 0.25y + 0.05y = 8.85 - 12.25

0.2y = 3.4

y = 3.4/0.2

y = 17

x = 49 - y = 49 - 17

x = 32

7 0
2 years ago
3h = (2p – 1) + h<br><br> Please someone help
Natalka [10]
Are you solving p or h
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4 0
3 years ago
Solve for e E=mc2 m=3 C=6
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THe answer is 36
E=36
6 0
3 years ago
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