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shtirl [24]
3 years ago
14

John is twice as old as Fred. Four years ago John was 6 times as old. How old is John?

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

I think john is 10 years old hope that helps.

Crazy boy [7]3 years ago
7 0

These two equations from the question!
Fred + 6 = John , John + 4 = 2Fred

Now we’re going to use the 2nd equation:
John + 4 = 2Fred
(Fred + 6) + 4 = 2Fred
Fred + 10 = 2Fred
10 = Fred

Now we’re re going to use first equation:
Fred + 6 = John
10 + 6 = John

So, John is 16 years old!
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Step-by-step explanation:

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3 years ago
Michael has a rope that is 13 meters long. He cuts away a piece that is 9.88 meters long. How long is the remaining piece of rop
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2 years ago
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Use the Two-Transversal Proportionality Corollary to find the value of x.
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I hope this helps you




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The answer is 8 days.

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Day - Todd - Seth

1     -  95     - 130

2    -   90    - 120

3   -    85    -  110

4    -   80    -   100

5    -  75    -   90

6  -    70   -    80

7  -    65    -   70

8 -     60   -    60

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3 years ago
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