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Dmitrij [34]
3 years ago
14

The oldest child in a family of four children is twice as old as the yougest. The two middle children are 12 and 15 years old. I

f the average age of the children is 12.75 , how old is the youngest child?
Mathematics
1 answer:
vesna_86 [32]3 years ago
3 0

Answer:

8 years old

Step-by-step explanation:

oldest= 16

8+12+15+16= 51

51/4 = 12.73 ( average)

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You are planning your week-end schedule. You can spend at most 8 hours playing video games and doing homework. You want to spend
MatroZZZ [7]

The system of inequalities is:

v + h ≤ 8

v < 2

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<h3>Which system of equations represents this situation?</h3>

Let's define the variables:

  • v = number of hours playing video games.
  • h = number of hours spent on homework.

The maximum time that you can spend on both activities is 8 hours, then:

v + h ≤ 8

You want to spend less than 2 hours on video games, so:

v < 2

You want to spend at least, 1.5 hours on homework, so:

h ≥ 1.5

Then the system of inequalities is:

v + h ≤ 8

v < 2

h ≥ 1.5

If you want to learn more about inequalities:

brainly.com/question/18881247

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2 years ago
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Jobisdone [24]
<h3>Answer:  9.4 feet</h3>

Work Shown:

sin(angle) = opposite/hypotenuse

sin(22) = x/25

x = 25*sin(22)

x = 9.3651648353978

x = 9.4

Your calculator needs to be in degree mode. One way to check is to compute sin(30) and you should get 0.5 or 1/2.

3 0
2 years ago
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astraxan [27]

Answer:

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Step-by-step explanation:

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3 years ago
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kotegsom [21]

Answer:

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Step-by-step explanation:

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Serga [27]
It’s the second one, 65.4

V=1
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3 years ago
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