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sweet [91]
3 years ago
6

Using the numbers and symbols, solve 7x = 42

Mathematics
1 answer:
spin [16.1K]3 years ago
4 0

Answer:

you currently have the value of x × 7, you need to divide it by 7 to find the value of x.

42 ÷ 7 = 6

Step-by-step explanation:

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Jackie runs and dances for a total of 55 minutes every day. She dances for 25 minutes longer than she runs.
AlladinOne [14]

9514 1404 393

Answer:

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Step-by-step explanation:

<h3>Part A:</h3>

The two equations relate to the total number of minutes, and to the difference specified in the problem statement.

  x + y = 55 . . . . . . total time is 55 minutes

  y = x + 25 . . . . . . dances 25 minutes longer

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<h3>Part B:</h3>

We can substitute for y in the first equation to find the value of x, the time spent running.

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  x = 15 . . . . . . divide by 2

Jackie spends 15 minutes running each day.

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<h3>Part C:</h3>

The value of y from is found using the second equation:

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