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Salsk061 [2.6K]
2 years ago
13

The number of seconds varies directly as the number of minutes. When 300 seconds have passes, 5 minutes have passed. If 480 seco

nds have passed, how many minutes have passed
Mathematics
1 answer:
Stells [14]2 years ago
5 0
Hello!

We know that 1 minute = 60 seconds.

5 minutes = 300 seconds because 60 × 5 = 300

360 seconds would be 6 muinutes. 420 seconds would be 7 minutes. That means 480 seconds = 8 minutes, so 8 minutes have passed.
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gogolik [260]
The answer is 18

Solution: 2:3 2x6=12
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Hope this help
4 0
3 years ago
An automatic machine is set to fill bags of dog food with exactly 25 pounds on average with a standard deviation of 0.5 pounds.
Rasek [7]

Answer:

Step-by-step explanation:

Given that an automatic machine is set to fill bags of dog food with exactly 25 pounds on average with a standard deviation of 0.5 pounds.

Sample size = n =100

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Sample std error = \frac{\sigma}{\sqrt{n} } =0.05

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H_0: x bar = 25\\H_a: x bar \neq 25

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2 years ago
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4 0
2 years ago
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How does the order of operations relate to solving multi-step equations? Use examples of solving an equation, and then evaluatin
givi [52]
The order of operations helps keep answers for multi-step equations similar. If the proper order of operations are not followed, then answers may vary. To show an example:

4 / 2 - 1

The proper order of operations would be:

Divide first, before subtracting
4 / 2 - 1
2 - 1
1

But if subtracting was done before dividing:

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So not following the proper order would yield different and erroneous answers.
6 0
3 years ago
Which of the following is in the solution set of y&lt; 8 x− 3? Select one: (7, 46) (7, 60) (10, 89) (9, 82)
navik [9.2K]

Answer:

  (7, 46)

Step-by-step explanation:

The offered answer choices have x-values of 7, 9, 10. The corresponding upper limit of y-value is ...

  x=7 : y < 8·7 -3 = 53 . . . . . 46 is in the solution set, 60 is not

  x=9 : y < 8·9 -3 = 69 . . . . 82 is not in the solution set

  x=10 : y < 8·10 -3 = 77 . . . . 89 is not in the solution set

Of the choices offered, only (7, 46) is in the solution set.

3 0
3 years ago
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