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Gnom [1K]
4 years ago
5

The oldest child in a family of four children is twice as old as the yougest. The two middle children are 13 and 15 years old. I

f the average age of the children is 13, how old is the youngest child?
Mathematics
1 answer:
Kobotan [32]4 years ago
4 0

The youngest child is 8 years old.

8 x 2 = 16

8 + 13 +15 +16 = 52

52 / 4 = 13

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2(3 – 4a) + 5(a – 7)
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Answer:

The answer is -(29+3a).

Step-by-step explanation:

=2(3-4a)+5(a-7)

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= 6-35-8a+5a

= -29-3a

= -(29+3a)

<em>Hope</em><em> </em><em>it helps</em><em>.</em><em>.</em>

6 0
3 years ago
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hram777 [196]
3^x = 729
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3 years ago
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Answer:

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Step-by-step explanation:

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4 years ago
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the answer is A

okay that it have a nice day

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