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Roman55 [17]
2 years ago
8

The ages in years of eight boys are 14,

Mathematics
1 answer:
SashulF [63]2 years ago
5 0

Answer:

B) 13

Step-by-step explanation:

Average age means to calculate mean:

Mean = (Sum of all numbers)/(Number of numbers)

Mean = (14 + 14.5 + 12 + 11.5 + 15 + 13 + 10.5 + 13.5)/8

Mean = (104)/8

Mean = 13

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Answer:

Option a. Y=3x

Step-by-step explanation:

Let us use cross multiplication method.

Let the cost of 1 magazine be x.

No. of copies                               Cost

1)50                                                $150

2)1                                                      x

50x=150 x 1               equation(1)

x=150/50

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Now see equation (1),

150=50x

150=50 x 3

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Y=3x

Therefore, a. Y=3x is the right answer.

Thank you!

                                             

8 0
3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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