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Paraphin [41]
3 years ago
14

55.69 rounded to the whole number

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
4 0

55.69 rounded to the nearest whole number is 56.

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Answer:

39

Step-by-step explanation:

3(6+7)

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What are the endpoint coordinates for the midsegment of △BCD that is parallel to BC¯¯¯¯¯?
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Answer:

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Step-by-step explanation:


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3 years ago
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One of the main contaminants of a nuclear accident, such as that at Chernobyl, is strontium-90, which decays exponentially at a
igor_vitrenko [27]

Answer: P=0.975^t


Step-by-step explanation:

We know that the general form of the exponential decay formula is


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Now, the ratio of strontium-90 remaining, p , as a function of years, t , since the nuclear accident. P=\frac{A(1-0.02)^t}{A}=\frac{(0.975)^t}{1}

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3 years ago
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) A coin collection consisting of pennies, dimes, and quarters totals 45 coins. The number of
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9514 1404 393

Answer:

  $7.14

Step-by-step explanation:

Let p, d, q represent the numbers of pennies, dimes, and quarters in the collection, respectively.

  p + d + q = 45 . . . . . . . . there are 45 coins in the collection

  2p +5 = q . . . . . . . . . . . . 5 more than twice the number of pennies

  p + 4 = d . . . . . . . . . . . . . 4 more than the number of pennies

Substituting the last two equations into the first gives ...

  p +(p +4) +(2p +5) = 45

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  p = 9 . . . . . . . . . . . divide by 4

  d = 9 +4 = 13

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The value of the collection is ...

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The coin collection is worth $7.14.

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