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jasenka [17]
3 years ago
6

In what ways is the measurement 3.2 m like 3.20 m? How isit different?​

Mathematics
1 answer:
stich3 [128]3 years ago
7 0

Answer:

3.20 is much more accurate than 3.2 .

Step-by-step explanation:

3.2 m is way different than 3.20 m , It is because

We can't measure any length accurately , and thus we are having different devices used to measure different lengths with different precision .

In the case of 3.2 , device used can accurately measure the length one place after the decimal. In this device we can't say the digit after 2 means that it can be 1,2,....  . Thus this device is less accurate as compared to second one.

In case of 3.20 , device can accurately measure the length two places after the decimal and in this device we can confidentially say that digit after two is 0. This device is more accurate than First one.

Thus, they are different because 3.20 is much more accurate than 3.2 .

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A mixture requires 4 cups of water for every 7 cups of flour used. How many cups of water should be used with 28 cups of flour
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Answer:

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Step-by-step explanation:

To get the response to this question, it would be required to convert both times to seconds alone.

For the first, the time It takes to flash is 1 minute 15 seconds which is same as 75 seconds

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This is equivalent to 300 seconds which is 5 minutes time

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A coin bank contains only quarters and dimes. The total value of the coins in the bank is $8.80. If the dimes were quarters and
masha68 [24]

Answer:

  • 18 dimes

Step-by-step explanation:

Let the number of dimes be d and quarters be q

<u>The value is $8.80 = 880¢, so:</u>

  • 10d + 25q = 880 ⇒ 2d + 5q = 176

<u>If the dimes were quarters and the quarters were dimes, the coins' total value would be $7.30 or 730¢</u>

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<u>Now we have 2 equations. Solving the system by elimination, subtract 5 times the second equation from twice the first equation:</u>

  • 2(2d + 5q) - 5(5d + 2q) = 2(176) - 5(146)
  • 4d - 25d = -378
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